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Finding the Fourth Proportional to 727,220, 1,003,543.34 and 404,929.92

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Solution

The fourth proportional to 727,220, 1,003,543.34 and 404,929.92 is: 558,792.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,220 : 1,003,543.34 = 404,929.92 : x
  2. Step 2: Convert to fraction form
    727,220/1,003,543.34 = 404,929.92/x
  3. Step 3: Cross multiply
    727,220x = 1,003,543.34 × 404,929.92
  4. Step 4: Simplify right side
    727,220x = 406,364,724,382.73
  5. Step 5: Solve for x
    x = 406,364,724,382.73/727,220
  6. Step 6: Final answer
    x = 558,792.01

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.