Home / 487,283.34-672,534.05-283,452.45

Finding the Fourth Proportional to 487,283.34, 672,534.05 and 283,452.45

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Solution

The fourth proportional to 487,283.34, 672,534.05 and 283,452.45 is: 391,212.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,283.34 : 672,534.05 = 283,452.45 : x
  2. Step 2: Convert to fraction form
    487,283.34/672,534.05 = 283,452.45/x
  3. Step 3: Cross multiply
    487,283.34x = 672,534.05 × 283,452.45
  4. Step 4: Simplify right side
    487,283.34x = 190,631,422,763.66
  5. Step 5: Solve for x
    x = 190,631,422,763.66/487,283.34
  6. Step 6: Final answer
    x = 391,212.68

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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.