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Finding the Fourth Proportional to 1,202,126, 1,658,985.72 and 665,582

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Solution

The fourth proportional to 1,202,126, 1,658,985.72 and 665,582 is: 918,531.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,202,126 : 1,658,985.72 = 665,582 : x
  2. Step 2: Convert to fraction form
    1,202,126/1,658,985.72 = 665,582/x
  3. Step 3: Cross multiply
    1,202,126x = 1,658,985.72 × 665,582
  4. Step 4: Simplify right side
    1,202,126x = 1,104,191,033,489.04
  5. Step 5: Solve for x
    x = 1,104,191,033,489.04/1,202,126
  6. Step 6: Final answer
    x = 918,531.86

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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.