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Finding the Fourth Proportional to 605,615.10, 908,422.65 and 578,058.90

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Solution

The fourth proportional to 605,615.10, 908,422.65 and 578,058.90 is: 867,088.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,615.10 : 908,422.65 = 578,058.90 : x
  2. Step 2: Convert to fraction form
    605,615.10/908,422.65 = 578,058.90/x
  3. Step 3: Cross multiply
    605,615.10x = 908,422.65 × 578,058.90
  4. Step 4: Simplify right side
    605,615.10x = 525,121,797,794.09
  5. Step 5: Solve for x
    x = 525,121,797,794.09/605,615.10
  6. Step 6: Final answer
    x = 867,088.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.