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Finding the Fourth Proportional to 650,988.94, 898,471.08 and 389,327.08

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Solution

The fourth proportional to 650,988.94, 898,471.08 and 389,327.08 is: 537,334.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,988.94 : 898,471.08 = 389,327.08 : x
  2. Step 2: Convert to fraction form
    650,988.94/898,471.08 = 389,327.08/x
  3. Step 3: Cross multiply
    650,988.94x = 898,471.08 × 389,327.08
  4. Step 4: Simplify right side
    650,988.94x = 349,799,122,040.85
  5. Step 5: Solve for x
    x = 349,799,122,040.85/650,988.94
  6. Step 6: Final answer
    x = 537,334.97

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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.