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Finding the Fourth Proportional to 522,159.12, 720,608.20 and 295,848.72

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Solution

The fourth proportional to 522,159.12, 720,608.20 and 295,848.72 is: 408,287.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,159.12 : 720,608.20 = 295,848.72 : x
  2. Step 2: Convert to fraction form
    522,159.12/720,608.20 = 295,848.72/x
  3. Step 3: Cross multiply
    522,159.12x = 720,608.20 × 295,848.72
  4. Step 4: Simplify right side
    522,159.12x = 213,191,013,591.50
  5. Step 5: Solve for x
    x = 213,191,013,591.50/522,159.12
  6. Step 6: Final answer
    x = 408,287.45

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1.5x scale

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.