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Finding the Fourth Proportional to 473,634, 653,614.92 and 272,430

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Solution

The fourth proportional to 473,634, 653,614.92 and 272,430 is: 375,953.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,634 : 653,614.92 = 272,430 : x
  2. Step 2: Convert to fraction form
    473,634/653,614.92 = 272,430/x
  3. Step 3: Cross multiply
    473,634x = 653,614.92 × 272,430
  4. Step 4: Simplify right side
    473,634x = 178,064,312,655.60
  5. Step 5: Solve for x
    x = 178,064,312,655.60/473,634
  6. Step 6: Final answer
    x = 375,953.40

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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.