Home / 438,330.80-657,496.20-364,519.55

Finding the Fourth Proportional to 438,330.80, 657,496.20 and 364,519.55

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Solution

The fourth proportional to 438,330.80, 657,496.20 and 364,519.55 is: 546,779.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,330.80 : 657,496.20 = 364,519.55 : x
  2. Step 2: Convert to fraction form
    438,330.80/657,496.20 = 364,519.55/x
  3. Step 3: Cross multiply
    438,330.80x = 657,496.20 × 364,519.55
  4. Step 4: Simplify right side
    438,330.80x = 239,670,218,950.71
  5. Step 5: Solve for x
    x = 239,670,218,950.71/438,330.80
  6. Step 6: Final answer
    x = 546,779.33

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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.