Home / 729,280.25-1,006,422.86-402,592.50

Finding the Fourth Proportional to 729,280.25, 1,006,422.86 and 402,592.50

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Solution

The fourth proportional to 729,280.25, 1,006,422.86 and 402,592.50 is: 555,586.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,280.25 : 1,006,422.86 = 402,592.50 : x
  2. Step 2: Convert to fraction form
    729,280.25/1,006,422.86 = 402,592.50/x
  3. Step 3: Cross multiply
    729,280.25x = 1,006,422.86 × 402,592.50
  4. Step 4: Simplify right side
    729,280.25x = 405,178,293,251.59
  5. Step 5: Solve for x
    x = 405,178,293,251.59/729,280.25
  6. Step 6: Final answer
    x = 555,586.55

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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.