Home / 749,356.60-1,124,034.90-243,965.20

Finding the Fourth Proportional to 749,356.60, 1,124,034.90 and 243,965.20

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Solution

The fourth proportional to 749,356.60, 1,124,034.90 and 243,965.20 is: 365,947.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,356.60 : 1,124,034.90 = 243,965.20 : x
  2. Step 2: Convert to fraction form
    749,356.60/1,124,034.90 = 243,965.20/x
  3. Step 3: Cross multiply
    749,356.60x = 1,124,034.90 × 243,965.20
  4. Step 4: Simplify right side
    749,356.60x = 274,225,399,185.48
  5. Step 5: Solve for x
    x = 274,225,399,185.48/749,356.60
  6. Step 6: Final answer
    x = 365,947.80

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.