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Finding the Fourth Proportional to 708,000.20, 1,060,445.10 and 427,027.40

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Solution

The fourth proportional to 708,000.20, 1,060,445.10 and 427,027.40 is: 639,603.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,000.20 : 1,060,445.10 = 427,027.40 : x
  2. Step 2: Convert to fraction form
    708,000.20/1,060,445.10 = 427,027.40/x
  3. Step 3: Cross multiply
    708,000.20x = 1,060,445.10 × 427,027.40
  4. Step 4: Simplify right side
    708,000.20x = 452,839,113,895.74
  5. Step 5: Solve for x
    x = 452,839,113,895.74/708,000.20
  6. Step 6: Final answer
    x = 639,603.09

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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.