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Finding the Fourth Proportional to 521,479.76, 719,681.44 and 292,025.44

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Solution

The fourth proportional to 521,479.76, 719,681.44 and 292,025.44 is: 403,017.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,479.76 : 719,681.44 = 292,025.44 : x
  2. Step 2: Convert to fraction form
    521,479.76/719,681.44 = 292,025.44/x
  3. Step 3: Cross multiply
    521,479.76x = 719,681.44 × 292,025.44
  4. Step 4: Simplify right side
    521,479.76x = 210,165,289,175.83
  5. Step 5: Solve for x
    x = 210,165,289,175.83/521,479.76
  6. Step 6: Final answer
    x = 403,017.15

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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.