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Finding the Fourth Proportional to 463,345.40, 695,018.10 and 276,721.40

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Solution

The fourth proportional to 463,345.40, 695,018.10 and 276,721.40 is: 415,082.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,345.40 : 695,018.10 = 276,721.40 : x
  2. Step 2: Convert to fraction form
    463,345.40/695,018.10 = 276,721.40/x
  3. Step 3: Cross multiply
    463,345.40x = 695,018.10 × 276,721.40
  4. Step 4: Simplify right side
    463,345.40x = 192,326,381,657.34
  5. Step 5: Solve for x
    x = 192,326,381,657.34/463,345.40
  6. Step 6: Final answer
    x = 415,082.10

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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.