Home / 975,259.62-1,345,269.78-644,117.58

Finding the Fourth Proportional to 975,259.62, 1,345,269.78 and 644,117.58

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Solution

The fourth proportional to 975,259.62, 1,345,269.78 and 644,117.58 is: 888,493.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    975,259.62 : 1,345,269.78 = 644,117.58 : x
  2. Step 2: Convert to fraction form
    975,259.62/1,345,269.78 = 644,117.58/x
  3. Step 3: Cross multiply
    975,259.62x = 1,345,269.78 × 644,117.58
  4. Step 4: Simplify right side
    975,259.62x = 866,511,915,140.73
  5. Step 5: Solve for x
    x = 866,511,915,140.73/975,259.62
  6. Step 6: Final answer
    x = 888,493.58

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Double scale
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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.