Home / 729,192.13-1,006,285.20-402,505.22

Finding the Fourth Proportional to 729,192.13, 1,006,285.20 and 402,505.22

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Solution

The fourth proportional to 729,192.13, 1,006,285.20 and 402,505.22 is: 555,457.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,192.13 : 1,006,285.20 = 402,505.22 : x
  2. Step 2: Convert to fraction form
    729,192.13/1,006,285.20 = 402,505.22/x
  3. Step 3: Cross multiply
    729,192.13x = 1,006,285.20 × 402,505.22
  4. Step 4: Simplify right side
    729,192.13x = 405,035,045,808.74
  5. Step 5: Solve for x
    x = 405,035,045,808.74/729,192.13
  6. Step 6: Final answer
    x = 555,457.24

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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.