Home / 993,138.10-1,489,721.02-283,166.42

Finding the Fourth Proportional to 993,138.10, 1,489,721.02 and 283,166.42

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Solution

The fourth proportional to 993,138.10, 1,489,721.02 and 283,166.42 is: 424,753.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,138.10 : 1,489,721.02 = 283,166.42 : x
  2. Step 2: Convert to fraction form
    993,138.10/1,489,721.02 = 283,166.42/x
  3. Step 3: Cross multiply
    993,138.10x = 1,489,721.02 × 283,166.42
  4. Step 4: Simplify right side
    993,138.10x = 421,838,959,875.63
  5. Step 5: Solve for x
    x = 421,838,959,875.63/993,138.10
  6. Step 6: Final answer
    x = 424,753.58

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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.