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Finding the Fourth Proportional to 575,040.72, 792,781.92 and 402,726.72

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Solution

The fourth proportional to 575,040.72, 792,781.92 and 402,726.72 is: 555,220.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,040.72 : 792,781.92 = 402,726.72 : x
  2. Step 2: Convert to fraction form
    575,040.72/792,781.92 = 402,726.72/x
  3. Step 3: Cross multiply
    575,040.72x = 792,781.92 × 402,726.72
  4. Step 4: Simplify right side
    575,040.72x = 319,274,462,316.90
  5. Step 5: Solve for x
    x = 319,274,462,316.90/575,040.72
  6. Step 6: Final answer
    x = 555,220.62

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1.5x scale

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.