Home / 711,806.40-1,070,042.40-502,891.20

Finding the Fourth Proportional to 711,806.40, 1,070,042.40 and 502,891.20

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Solution

The fourth proportional to 711,806.40, 1,070,042.40 and 502,891.20 is: 755,984.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,806.40 : 1,070,042.40 = 502,891.20 : x
  2. Step 2: Convert to fraction form
    711,806.40/1,070,042.40 = 502,891.20/x
  3. Step 3: Cross multiply
    711,806.40x = 1,070,042.40 × 502,891.20
  4. Step 4: Simplify right side
    711,806.40x = 538,114,906,586.88
  5. Step 5: Solve for x
    x = 538,114,906,586.88/711,806.40
  6. Step 6: Final answer
    x = 755,984.92

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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.