Home / 874,643.76-1,310,839.20-424,493.48

Finding the Fourth Proportional to 874,643.76, 1,310,839.20 and 424,493.48

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Solution

The fourth proportional to 874,643.76, 1,310,839.20 and 424,493.48 is: 636,193.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,643.76 : 1,310,839.20 = 424,493.48 : x
  2. Step 2: Convert to fraction form
    874,643.76/1,310,839.20 = 424,493.48/x
  3. Step 3: Cross multiply
    874,643.76x = 1,310,839.20 × 424,493.48
  4. Step 4: Simplify right side
    874,643.76x = 556,442,693,728.42
  5. Step 5: Solve for x
    x = 556,442,693,728.42/874,643.76
  6. Step 6: Final answer
    x = 636,193.52

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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.