Home / 861,665.70-1,292,498.55-483,752.10

Finding the Fourth Proportional to 861,665.70, 1,292,498.55 and 483,752.10

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Solution

The fourth proportional to 861,665.70, 1,292,498.55 and 483,752.10 is: 725,628.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,665.70 : 1,292,498.55 = 483,752.10 : x
  2. Step 2: Convert to fraction form
    861,665.70/1,292,498.55 = 483,752.10/x
  3. Step 3: Cross multiply
    861,665.70x = 1,292,498.55 × 483,752.10
  4. Step 4: Simplify right side
    861,665.70x = 625,248,887,809.46
  5. Step 5: Solve for x
    x = 625,248,887,809.46/861,665.70
  6. Step 6: Final answer
    x = 725,628.15

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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.