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Finding the Fourth Proportional to 627,899.52, 866,822.40 and 484,337.28

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Solution

The fourth proportional to 627,899.52, 866,822.40 and 484,337.28 is: 668,633.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,899.52 : 866,822.40 = 484,337.28 : x
  2. Step 2: Convert to fraction form
    627,899.52/866,822.40 = 484,337.28/x
  3. Step 3: Cross multiply
    627,899.52x = 866,822.40 × 484,337.28
  4. Step 4: Simplify right side
    627,899.52x = 419,834,403,459.07
  5. Step 5: Solve for x
    x = 419,834,403,459.07/627,899.52
  6. Step 6: Final answer
    x = 668,633.10

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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.