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Finding the Fourth Proportional to 712,628, 983,397.84 and 426,306.32

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Solution

The fourth proportional to 712,628, 983,397.84 and 426,306.32 is: 588,285.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,628 : 983,397.84 = 426,306.32 : x
  2. Step 2: Convert to fraction form
    712,628/983,397.84 = 426,306.32/x
  3. Step 3: Cross multiply
    712,628x = 983,397.84 × 426,306.32
  4. Step 4: Simplify right side
    712,628x = 419,228,714,266.35
  5. Step 5: Solve for x
    x = 419,228,714,266.35/712,628
  6. Step 6: Final answer
    x = 588,285.49

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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.