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Finding the Fourth Proportional to 908,577.90, 1,362,866.85 and 818,376.30

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Solution

The fourth proportional to 908,577.90, 1,362,866.85 and 818,376.30 is: 1,227,564.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,577.90 : 1,362,866.85 = 818,376.30 : x
  2. Step 2: Convert to fraction form
    908,577.90/1,362,866.85 = 818,376.30/x
  3. Step 3: Cross multiply
    908,577.90x = 1,362,866.85 × 818,376.30
  4. Step 4: Simplify right side
    908,577.90x = 1,115,337,930,095.66
  5. Step 5: Solve for x
    x = 1,115,337,930,095.66/908,577.90
  6. Step 6: Final answer
    x = 1,227,564.45

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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.