Home / 615,529.80-849,815.15-397,852.43

Finding the Fourth Proportional to 615,529.80, 849,815.15 and 397,852.43

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Solution

The fourth proportional to 615,529.80, 849,815.15 and 397,852.43 is: 549,284.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,529.80 : 849,815.15 = 397,852.43 : x
  2. Step 2: Convert to fraction form
    615,529.80/849,815.15 = 397,852.43/x
  3. Step 3: Cross multiply
    615,529.80x = 849,815.15 × 397,852.43
  4. Step 4: Simplify right side
    615,529.80x = 338,101,016,239.98
  5. Step 5: Solve for x
    x = 338,101,016,239.98/615,529.80
  6. Step 6: Final answer
    x = 549,284.56

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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.