Home / 880,991.50-1,215,665.13-518,335.60

Finding the Fourth Proportional to 880,991.50, 1,215,665.13 and 518,335.60

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Solution

The fourth proportional to 880,991.50, 1,215,665.13 and 518,335.60 is: 715,242.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,991.50 : 1,215,665.13 = 518,335.60 : x
  2. Step 2: Convert to fraction form
    880,991.50/1,215,665.13 = 518,335.60/x
  3. Step 3: Cross multiply
    880,991.50x = 1,215,665.13 × 518,335.60
  4. Step 4: Simplify right side
    880,991.50x = 630,122,514,557.63
  5. Step 5: Solve for x
    x = 630,122,514,557.63/880,991.50
  6. Step 6: Final answer
    x = 715,242.45

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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.