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Finding the Fourth Proportional to 880,993, 1,215,667.20 and 518,337.10

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Solution

The fourth proportional to 880,993, 1,215,667.20 and 518,337.10 is: 715,244.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,993 : 1,215,667.20 = 518,337.10 : x
  2. Step 2: Convert to fraction form
    880,993/1,215,667.20 = 518,337.10/x
  3. Step 3: Cross multiply
    880,993x = 1,215,667.20 × 518,337.10
  4. Step 4: Simplify right side
    880,993x = 630,125,411,013.12
  5. Step 5: Solve for x
    x = 630,125,411,013.12/880,993
  6. Step 6: Final answer
    x = 715,244.52

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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.