Home / 769,478.72-1,061,878.40-429,947.24

Finding the Fourth Proportional to 769,478.72, 1,061,878.40 and 429,947.24

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Solution

The fourth proportional to 769,478.72, 1,061,878.40 and 429,947.24 is: 593,325.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,478.72 : 1,061,878.40 = 429,947.24 : x
  2. Step 2: Convert to fraction form
    769,478.72/1,061,878.40 = 429,947.24/x
  3. Step 3: Cross multiply
    769,478.72x = 1,061,878.40 × 429,947.24
  4. Step 4: Simplify right side
    769,478.72x = 456,551,687,295.62
  5. Step 5: Solve for x
    x = 456,551,687,295.62/769,478.72
  6. Step 6: Final answer
    x = 593,325.94

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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.