Home / 769,490.08-1,061,876.40-429,961.12

Finding the Fourth Proportional to 769,490.08, 1,061,876.40 and 429,961.12

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Solution

The fourth proportional to 769,490.08, 1,061,876.40 and 429,961.12 is: 593,335.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,490.08 : 1,061,876.40 = 429,961.12 : x
  2. Step 2: Convert to fraction form
    769,490.08/1,061,876.40 = 429,961.12/x
  3. Step 3: Cross multiply
    769,490.08x = 1,061,876.40 × 429,961.12
  4. Step 4: Simplify right side
    769,490.08x = 456,565,566,245.57
  5. Step 5: Solve for x
    x = 456,565,566,245.57/769,490.08
  6. Step 6: Final answer
    x = 593,335.22

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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.