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Finding the Fourth Proportional to 878,797.70, 1,316,999.42 and 537,360.70

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Solution

The fourth proportional to 878,797.70, 1,316,999.42 and 537,360.70 is: 805,309.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,797.70 : 1,316,999.42 = 537,360.70 : x
  2. Step 2: Convert to fraction form
    878,797.70/1,316,999.42 = 537,360.70/x
  3. Step 3: Cross multiply
    878,797.70x = 1,316,999.42 × 537,360.70
  4. Step 4: Simplify right side
    878,797.70x = 707,703,731,002.99
  5. Step 5: Solve for x
    x = 707,703,731,002.99/878,797.70
  6. Step 6: Final answer
    x = 805,309.04

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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.