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Finding the Fourth Proportional to 684,677.80, 1,027,016.70 and 472,101.40

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Solution

The fourth proportional to 684,677.80, 1,027,016.70 and 472,101.40 is: 708,152.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,677.80 : 1,027,016.70 = 472,101.40 : x
  2. Step 2: Convert to fraction form
    684,677.80/1,027,016.70 = 472,101.40/x
  3. Step 3: Cross multiply
    684,677.80x = 1,027,016.70 × 472,101.40
  4. Step 4: Simplify right side
    684,677.80x = 484,856,021,893.38
  5. Step 5: Solve for x
    x = 484,856,021,893.38/684,677.80
  6. Step 6: Final answer
    x = 708,152.10

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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.