Home / 749,287.80-1,123,931.70-510,139.35

Finding the Fourth Proportional to 749,287.80, 1,123,931.70 and 510,139.35

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Solution

The fourth proportional to 749,287.80, 1,123,931.70 and 510,139.35 is: 765,209.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,287.80 : 1,123,931.70 = 510,139.35 : x
  2. Step 2: Convert to fraction form
    749,287.80/1,123,931.70 = 510,139.35/x
  3. Step 3: Cross multiply
    749,287.80x = 1,123,931.70 × 510,139.35
  4. Step 4: Simplify right side
    749,287.80x = 573,361,786,882.40
  5. Step 5: Solve for x
    x = 573,361,786,882.40/749,287.80
  6. Step 6: Final answer
    x = 765,209.03

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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.