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Finding the Fourth Proportional to 478,520.80, 717,608.40 and 241,784.80

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Solution

The fourth proportional to 478,520.80, 717,608.40 and 241,784.80 is: 362,589.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,520.80 : 717,608.40 = 241,784.80 : x
  2. Step 2: Convert to fraction form
    478,520.80/717,608.40 = 241,784.80/x
  3. Step 3: Cross multiply
    478,520.80x = 717,608.40 × 241,784.80
  4. Step 4: Simplify right side
    478,520.80x = 173,506,803,472.32
  5. Step 5: Solve for x
    x = 173,506,803,472.32/478,520.80
  6. Step 6: Final answer
    x = 362,589.89

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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.