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Finding the Fourth Proportional to 768,352.42, 1,060,384.53 and 424,253.89

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Solution

The fourth proportional to 768,352.42, 1,060,384.53 and 424,253.89 is: 585,502.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,352.42 : 1,060,384.53 = 424,253.89 : x
  2. Step 2: Convert to fraction form
    768,352.42/1,060,384.53 = 424,253.89/x
  3. Step 3: Cross multiply
    768,352.42x = 1,060,384.53 × 424,253.89
  4. Step 4: Simplify right side
    768,352.42x = 449,872,261,748.32
  5. Step 5: Solve for x
    x = 449,872,261,748.32/768,352.42
  6. Step 6: Final answer
    x = 585,502.50

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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.