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Finding the Fourth Proportional to 712,752.80, 983,598.81 and 426,272.88

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Solution

The fourth proportional to 712,752.80, 983,598.81 and 426,272.88 is: 588,256.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,752.80 : 983,598.81 = 426,272.88 : x
  2. Step 2: Convert to fraction form
    712,752.80/983,598.81 = 426,272.88/x
  3. Step 3: Cross multiply
    712,752.80x = 983,598.81 × 426,272.88
  4. Step 4: Simplify right side
    712,752.80x = 419,281,497,503.27
  5. Step 5: Solve for x
    x = 419,281,497,503.27/712,752.80
  6. Step 6: Final answer
    x = 588,256.54

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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.