Home / 741,878.40-1,023,793.38-402,346.92

Finding the Fourth Proportional to 741,878.40, 1,023,793.38 and 402,346.92

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Solution

The fourth proportional to 741,878.40, 1,023,793.38 and 402,346.92 is: 555,239.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    741,878.40 : 1,023,793.38 = 402,346.92 : x
  2. Step 2: Convert to fraction form
    741,878.40/1,023,793.38 = 402,346.92/x
  3. Step 3: Cross multiply
    741,878.40x = 1,023,793.38 × 402,346.92
  4. Step 4: Simplify right side
    741,878.40x = 411,920,113,159.39
  5. Step 5: Solve for x
    x = 411,920,113,159.39/741,878.40
  6. Step 6: Final answer
    x = 555,239.39

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Double scale
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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.