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Finding the Fourth Proportional to 661,554.08, 991,189.80 and 362,250.08

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Solution

The fourth proportional to 661,554.08, 991,189.80 and 362,250.08 is: 542,750.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,554.08 : 991,189.80 = 362,250.08 : x
  2. Step 2: Convert to fraction form
    661,554.08/991,189.80 = 362,250.08/x
  3. Step 3: Cross multiply
    661,554.08x = 991,189.80 × 362,250.08
  4. Step 4: Simplify right side
    661,554.08x = 359,058,584,345.18
  5. Step 5: Solve for x
    x = 359,058,584,345.18/661,554.08
  6. Step 6: Final answer
    x = 542,750.16

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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.