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Finding the Fourth Proportional to 457,017.90, 685,666.89 and 204,510.90

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Solution

The fourth proportional to 457,017.90, 685,666.89 and 204,510.90 is: 306,829.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,017.90 : 685,666.89 = 204,510.90 : x
  2. Step 2: Convert to fraction form
    457,017.90/685,666.89 = 204,510.90/x
  3. Step 3: Cross multiply
    457,017.90x = 685,666.89 × 204,510.90
  4. Step 4: Simplify right side
    457,017.90x = 140,226,352,774.10
  5. Step 5: Solve for x
    x = 140,226,352,774.10/457,017.90
  6. Step 6: Final answer
    x = 306,829.02

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1.5x scale

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.