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Finding the Fourth Proportional to 657,487.08, 986,673.48 and 258,080.54

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Solution

The fourth proportional to 657,487.08, 986,673.48 and 258,080.54 is: 387,294.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,487.08 : 986,673.48 = 258,080.54 : x
  2. Step 2: Convert to fraction form
    657,487.08/986,673.48 = 258,080.54/x
  3. Step 3: Cross multiply
    657,487.08x = 986,673.48 × 258,080.54
  4. Step 4: Simplify right side
    657,487.08x = 254,641,224,522.08
  5. Step 5: Solve for x
    x = 254,641,224,522.08/657,487.08
  6. Step 6: Final answer
    x = 387,294.64

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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.