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Finding the Fourth Proportional to 692,798.04, 955,709.10 and 420,793.56

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Solution

The fourth proportional to 692,798.04, 955,709.10 and 420,793.56 is: 580,481.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,798.04 : 955,709.10 = 420,793.56 : x
  2. Step 2: Convert to fraction form
    692,798.04/955,709.10 = 420,793.56/x
  3. Step 3: Cross multiply
    692,798.04x = 955,709.10 × 420,793.56
  4. Step 4: Simplify right side
    692,798.04x = 402,156,234,513.40
  5. Step 5: Solve for x
    x = 402,156,234,513.40/692,798.04
  6. Step 6: Final answer
    x = 580,481.20

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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.