Home / 738,187.56-1,018,702.32-415,902.60

Finding the Fourth Proportional to 738,187.56, 1,018,702.32 and 415,902.60

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Solution

The fourth proportional to 738,187.56, 1,018,702.32 and 415,902.60 is: 573,947.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,187.56 : 1,018,702.32 = 415,902.60 : x
  2. Step 2: Convert to fraction form
    738,187.56/1,018,702.32 = 415,902.60/x
  3. Step 3: Cross multiply
    738,187.56x = 1,018,702.32 × 415,902.60
  4. Step 4: Simplify right side
    738,187.56x = 423,680,943,514.03
  5. Step 5: Solve for x
    x = 423,680,943,514.03/738,187.56
  6. Step 6: Final answer
    x = 573,947.55

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1.5x scale

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.