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Finding the Fourth Proportional to 660,646.35, 911,755.95 and 370,307.24

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Solution

The fourth proportional to 660,646.35, 911,755.95 and 370,307.24 is: 511,059.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,646.35 : 911,755.95 = 370,307.24 : x
  2. Step 2: Convert to fraction form
    660,646.35/911,755.95 = 370,307.24/x
  3. Step 3: Cross multiply
    660,646.35x = 911,755.95 × 370,307.24
  4. Step 4: Simplify right side
    660,646.35x = 337,629,824,839.30
  5. Step 5: Solve for x
    x = 337,629,824,839.30/660,646.35
  6. Step 6: Final answer
    x = 511,059.85

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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.