Home / 729,188.47-1,006,337.38-402,566.40

Finding the Fourth Proportional to 729,188.47, 1,006,337.38 and 402,566.40

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Solution

The fourth proportional to 729,188.47, 1,006,337.38 and 402,566.40 is: 555,573.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,188.47 : 1,006,337.38 = 402,566.40 : x
  2. Step 2: Convert to fraction form
    729,188.47/1,006,337.38 = 402,566.40/x
  3. Step 3: Cross multiply
    729,188.47x = 1,006,337.38 × 402,566.40
  4. Step 4: Simplify right side
    729,188.47x = 405,117,616,755.24
  5. Step 5: Solve for x
    x = 405,117,616,755.24/729,188.47
  6. Step 6: Final answer
    x = 555,573.26

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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.