Home / 769,478.71-1,061,878.39-429,947.23

Finding the Fourth Proportional to 769,478.71, 1,061,878.39 and 429,947.23

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Solution

The fourth proportional to 769,478.71, 1,061,878.39 and 429,947.23 is: 593,325.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,478.71 : 1,061,878.39 = 429,947.23 : x
  2. Step 2: Convert to fraction form
    769,478.71/1,061,878.39 = 429,947.23/x
  3. Step 3: Cross multiply
    769,478.71x = 1,061,878.39 × 429,947.23
  4. Step 4: Simplify right side
    769,478.71x = 456,551,672,377.36
  5. Step 5: Solve for x
    x = 456,551,672,377.36/769,478.71
  6. Step 6: Final answer
    x = 593,325.93

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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.