Home / 810,418.71-1,118,420.87-466,306.92

Finding the Fourth Proportional to 810,418.71, 1,118,420.87 and 466,306.92

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Solution

The fourth proportional to 810,418.71, 1,118,420.87 and 466,306.92 is: 643,528.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,418.71 : 1,118,420.87 = 466,306.92 : x
  2. Step 2: Convert to fraction form
    810,418.71/1,118,420.87 = 466,306.92/x
  3. Step 3: Cross multiply
    810,418.71x = 1,118,420.87 × 466,306.92
  4. Step 4: Simplify right side
    810,418.71x = 521,527,388,821.89
  5. Step 5: Solve for x
    x = 521,527,388,821.89/810,418.71
  6. Step 6: Final answer
    x = 643,528.32

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.