Home / 643,254.27-963,663.51-429,377.29

Finding the Fourth Proportional to 643,254.27, 963,663.51 and 429,377.29

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Solution

The fourth proportional to 643,254.27, 963,663.51 and 429,377.29 is: 643,252.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,254.27 : 963,663.51 = 429,377.29 : x
  2. Step 2: Convert to fraction form
    643,254.27/963,663.51 = 429,377.29/x
  3. Step 3: Cross multiply
    643,254.27x = 963,663.51 × 429,377.29
  4. Step 4: Simplify right side
    643,254.27x = 413,775,225,596.69
  5. Step 5: Solve for x
    x = 413,775,225,596.69/643,254.27
  6. Step 6: Final answer
    x = 643,252.98

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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.