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Finding the Fourth Proportional to 559,275.72, 772,429.22 and 377,672.40

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Solution

The fourth proportional to 559,275.72, 772,429.22 and 377,672.40 is: 521,612.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,275.72 : 772,429.22 = 377,672.40 : x
  2. Step 2: Convert to fraction form
    559,275.72/772,429.22 = 377,672.40/x
  3. Step 3: Cross multiply
    559,275.72x = 772,429.22 × 377,672.40
  4. Step 4: Simplify right side
    559,275.72x = 291,725,195,459.17
  5. Step 5: Solve for x
    x = 291,725,195,459.17/559,275.72
  6. Step 6: Final answer
    x = 521,612.48

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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.