Home / 438,582.60-657,344.07-213,605.82

Finding the Fourth Proportional to 438,582.60, 657,344.07 and 213,605.82

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Solution

The fourth proportional to 438,582.60, 657,344.07 and 213,605.82 is: 320,150.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,582.60 : 657,344.07 = 213,605.82 : x
  2. Step 2: Convert to fraction form
    438,582.60/657,344.07 = 213,605.82/x
  3. Step 3: Cross multiply
    438,582.60x = 657,344.07 × 213,605.82
  4. Step 4: Simplify right side
    438,582.60x = 140,412,519,094.49
  5. Step 5: Solve for x
    x = 140,412,519,094.49/438,582.60
  6. Step 6: Final answer
    x = 320,150.68

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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.