Home / 487,255.10-730,623.45-206,455.10

Finding the Fourth Proportional to 487,255.10, 730,623.45 and 206,455.10

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Solution

The fourth proportional to 487,255.10, 730,623.45 and 206,455.10 is: 309,572.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,255.10 : 730,623.45 = 206,455.10 : x
  2. Step 2: Convert to fraction form
    487,255.10/730,623.45 = 206,455.10/x
  3. Step 3: Cross multiply
    487,255.10x = 730,623.45 × 206,455.10
  4. Step 4: Simplify right side
    487,255.10x = 150,840,937,432.10
  5. Step 5: Solve for x
    x = 150,840,937,432.10/487,255.10
  6. Step 6: Final answer
    x = 309,572.82

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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.