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Finding the Fourth Proportional to 807,002.10, 1,210,503.15 and 793,005.30

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Solution

The fourth proportional to 807,002.10, 1,210,503.15 and 793,005.30 is: 1,189,507.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,002.10 : 1,210,503.15 = 793,005.30 : x
  2. Step 2: Convert to fraction form
    807,002.10/1,210,503.15 = 793,005.30/x
  3. Step 3: Cross multiply
    807,002.10x = 1,210,503.15 × 793,005.30
  4. Step 4: Simplify right side
    807,002.10x = 959,935,413,616.70
  5. Step 5: Solve for x
    x = 959,935,413,616.70/807,002.10
  6. Step 6: Final answer
    x = 1,189,507.95

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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.