Home / 861,321.48-1,188,612.04-479,348.16

Finding the Fourth Proportional to 861,321.48, 1,188,612.04 and 479,348.16

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Solution

The fourth proportional to 861,321.48, 1,188,612.04 and 479,348.16 is: 661,494.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,321.48 : 1,188,612.04 = 479,348.16 : x
  2. Step 2: Convert to fraction form
    861,321.48/1,188,612.04 = 479,348.16/x
  3. Step 3: Cross multiply
    861,321.48x = 1,188,612.04 × 479,348.16
  4. Step 4: Simplify right side
    861,321.48x = 569,758,994,327.85
  5. Step 5: Solve for x
    x = 569,758,994,327.85/861,321.48
  6. Step 6: Final answer
    x = 661,494.00

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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.