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Finding the Fourth Proportional to 615,526.66, 849,810.84 and 397,849.30

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Solution

The fourth proportional to 615,526.66, 849,810.84 and 397,849.30 is: 549,280.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,526.66 : 849,810.84 = 397,849.30 : x
  2. Step 2: Convert to fraction form
    615,526.66/849,810.84 = 397,849.30/x
  3. Step 3: Cross multiply
    615,526.66x = 849,810.84 × 397,849.30
  4. Step 4: Simplify right side
    615,526.66x = 338,096,647,826.41
  5. Step 5: Solve for x
    x = 338,096,647,826.41/615,526.66
  6. Step 6: Final answer
    x = 549,280.27

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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.