Home / 728,834.40-1,006,259.76-457,274.88

Finding the Fourth Proportional to 728,834.40, 1,006,259.76 and 457,274.88

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Solution

The fourth proportional to 728,834.40, 1,006,259.76 and 457,274.88 is: 631,333.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,834.40 : 1,006,259.76 = 457,274.88 : x
  2. Step 2: Convert to fraction form
    728,834.40/1,006,259.76 = 457,274.88/x
  3. Step 3: Cross multiply
    728,834.40x = 1,006,259.76 × 457,274.88
  4. Step 4: Simplify right side
    728,834.40x = 460,137,311,002.83
  5. Step 5: Solve for x
    x = 460,137,311,002.83/728,834.40
  6. Step 6: Final answer
    x = 631,333.14

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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.