Home / 903,669.40-1,355,504.10-272,501.20

Finding the Fourth Proportional to 903,669.40, 1,355,504.10 and 272,501.20

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Solution

The fourth proportional to 903,669.40, 1,355,504.10 and 272,501.20 is: 408,751.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,669.40 : 1,355,504.10 = 272,501.20 : x
  2. Step 2: Convert to fraction form
    903,669.40/1,355,504.10 = 272,501.20/x
  3. Step 3: Cross multiply
    903,669.40x = 1,355,504.10 × 272,501.20
  4. Step 4: Simplify right side
    903,669.40x = 369,376,493,854.92
  5. Step 5: Solve for x
    x = 369,376,493,854.92/903,669.40
  6. Step 6: Final answer
    x = 408,751.80

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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.