Home / 890,659.76-1,229,188.20-488,329.52

Finding the Fourth Proportional to 890,659.76, 1,229,188.20 and 488,329.52

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Solution

The fourth proportional to 890,659.76, 1,229,188.20 and 488,329.52 is: 673,937.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,659.76 : 1,229,188.20 = 488,329.52 : x
  2. Step 2: Convert to fraction form
    890,659.76/1,229,188.20 = 488,329.52/x
  3. Step 3: Cross multiply
    890,659.76x = 1,229,188.20 × 488,329.52
  4. Step 4: Simplify right side
    890,659.76x = 600,248,883,695.66
  5. Step 5: Solve for x
    x = 600,248,883,695.66/890,659.76
  6. Step 6: Final answer
    x = 673,937.36

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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.