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Finding the Fourth Proportional to 707,508.48, 976,312.38 and 401,591.10

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Solution

The fourth proportional to 707,508.48, 976,312.38 and 401,591.10 is: 554,167.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,508.48 : 976,312.38 = 401,591.10 : x
  2. Step 2: Convert to fraction form
    707,508.48/976,312.38 = 401,591.10/x
  3. Step 3: Cross multiply
    707,508.48x = 976,312.38 × 401,591.10
  4. Step 4: Simplify right side
    707,508.48x = 392,078,362,627.82
  5. Step 5: Solve for x
    x = 392,078,362,627.82/707,508.48
  6. Step 6: Final answer
    x = 554,167.72

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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.