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Finding the Fourth Proportional to 598,810.60, 898,215.90 and 520,078.60

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Solution

The fourth proportional to 598,810.60, 898,215.90 and 520,078.60 is: 780,117.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,810.60 : 898,215.90 = 520,078.60 : x
  2. Step 2: Convert to fraction form
    598,810.60/898,215.90 = 520,078.60/x
  3. Step 3: Cross multiply
    598,810.60x = 898,215.90 × 520,078.60
  4. Step 4: Simplify right side
    598,810.60x = 467,142,867,769.74
  5. Step 5: Solve for x
    x = 467,142,867,769.74/598,810.60
  6. Step 6: Final answer
    x = 780,117.90

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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.