Home / 749,219.60-1,123,829.40-243,828.20

Finding the Fourth Proportional to 749,219.60, 1,123,829.40 and 243,828.20

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Solution

The fourth proportional to 749,219.60, 1,123,829.40 and 243,828.20 is: 365,742.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,219.60 : 1,123,829.40 = 243,828.20 : x
  2. Step 2: Convert to fraction form
    749,219.60/1,123,829.40 = 243,828.20/x
  3. Step 3: Cross multiply
    749,219.60x = 1,123,829.40 × 243,828.20
  4. Step 4: Simplify right side
    749,219.60x = 274,021,299,709.08
  5. Step 5: Solve for x
    x = 274,021,299,709.08/749,219.60
  6. Step 6: Final answer
    x = 365,742.30

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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.