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Finding the Fourth Proportional to 612,793.60, 920,174.55 and 463,202.80

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Solution

The fourth proportional to 612,793.60, 920,174.55 and 463,202.80 is: 695,548.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,793.60 : 920,174.55 = 463,202.80 : x
  2. Step 2: Convert to fraction form
    612,793.60/920,174.55 = 463,202.80/x
  3. Step 3: Cross multiply
    612,793.60x = 920,174.55 × 463,202.80
  4. Step 4: Simplify right side
    612,793.60x = 426,227,428,048.74
  5. Step 5: Solve for x
    x = 426,227,428,048.74/612,793.60
  6. Step 6: Final answer
    x = 695,548.11

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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.