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Finding the Fourth Proportional to 777,001.60, 1,072,563.52 and 607,290.88

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Solution

The fourth proportional to 777,001.60, 1,072,563.52 and 607,290.88 is: 838,296.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,001.60 : 1,072,563.52 = 607,290.88 : x
  2. Step 2: Convert to fraction form
    777,001.60/1,072,563.52 = 607,290.88/x
  3. Step 3: Cross multiply
    777,001.60x = 1,072,563.52 × 607,290.88
  4. Step 4: Simplify right side
    777,001.60x = 651,358,043,916.70
  5. Step 5: Solve for x
    x = 651,358,043,916.70/777,001.60
  6. Step 6: Final answer
    x = 838,296.91

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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.