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Finding the Fourth Proportional to 660,062.96, 910,862.52 and 358,250.48

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Solution

The fourth proportional to 660,062.96, 910,862.52 and 358,250.48 is: 494,372.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,062.96 : 910,862.52 = 358,250.48 : x
  2. Step 2: Convert to fraction form
    660,062.96/910,862.52 = 358,250.48/x
  3. Step 3: Cross multiply
    660,062.96x = 910,862.52 × 358,250.48
  4. Step 4: Simplify right side
    660,062.96x = 326,316,935,004.01
  5. Step 5: Solve for x
    x = 326,316,935,004.01/660,062.96
  6. Step 6: Final answer
    x = 494,372.44

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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.