Home / 763,935.20-1,145,125.20-448,229.60

Finding the Fourth Proportional to 763,935.20, 1,145,125.20 and 448,229.60

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Solution

The fourth proportional to 763,935.20, 1,145,125.20 and 448,229.60 is: 671,888.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,935.20 : 1,145,125.20 = 448,229.60 : x
  2. Step 2: Convert to fraction form
    763,935.20/1,145,125.20 = 448,229.60/x
  3. Step 3: Cross multiply
    763,935.20x = 1,145,125.20 × 448,229.60
  4. Step 4: Simplify right side
    763,935.20x = 513,279,010,345.92
  5. Step 5: Solve for x
    x = 513,279,010,345.92/763,935.20
  6. Step 6: Final answer
    x = 671,888.15

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Double scale
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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.