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Finding the Fourth Proportional to 476,363.17, 657,357.03 and 282,779.15

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Solution

The fourth proportional to 476,363.17, 657,357.03 and 282,779.15 is: 390,220.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,363.17 : 657,357.03 = 282,779.15 : x
  2. Step 2: Convert to fraction form
    476,363.17/657,357.03 = 282,779.15/x
  3. Step 3: Cross multiply
    476,363.17x = 657,357.03 × 282,779.15
  4. Step 4: Simplify right side
    476,363.17x = 185,886,863,833.32
  5. Step 5: Solve for x
    x = 185,886,863,833.32/476,363.17
  6. Step 6: Final answer
    x = 390,220.90

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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.