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Finding the Fourth Proportional to 573,632.76, 791,613.84 and 318,978.48

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Solution

The fourth proportional to 573,632.76, 791,613.84 and 318,978.48 is: 440,190.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,632.76 : 791,613.84 = 318,978.48 : x
  2. Step 2: Convert to fraction form
    573,632.76/791,613.84 = 318,978.48/x
  3. Step 3: Cross multiply
    573,632.76x = 791,613.84 × 318,978.48
  4. Step 4: Simplify right side
    573,632.76x = 252,507,779,430.16
  5. Step 5: Solve for x
    x = 252,507,779,430.16/573,632.76
  6. Step 6: Final answer
    x = 440,190.65

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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.