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Finding the Fourth Proportional to 583,275.60, 804,920.16 and 315,003.60

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Solution

The fourth proportional to 583,275.60, 804,920.16 and 315,003.60 is: 434,704.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,275.60 : 804,920.16 = 315,003.60 : x
  2. Step 2: Convert to fraction form
    583,275.60/804,920.16 = 315,003.60/x
  3. Step 3: Cross multiply
    583,275.60x = 804,920.16 × 315,003.60
  4. Step 4: Simplify right side
    583,275.60x = 253,552,748,112.58
  5. Step 5: Solve for x
    x = 253,552,748,112.58/583,275.60
  6. Step 6: Final answer
    x = 434,704.88

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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.