Home / 753,870.32-1,040,312.49-431,610.38

Finding the Fourth Proportional to 753,870.32, 1,040,312.49 and 431,610.38

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Solution

The fourth proportional to 753,870.32, 1,040,312.49 and 431,610.38 is: 595,605.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,870.32 : 1,040,312.49 = 431,610.38 : x
  2. Step 2: Convert to fraction form
    753,870.32/1,040,312.49 = 431,610.38/x
  3. Step 3: Cross multiply
    753,870.32x = 1,040,312.49 × 431,610.38
  4. Step 4: Simplify right side
    753,870.32x = 449,009,669,127.65
  5. Step 5: Solve for x
    x = 449,009,669,127.65/753,870.32
  6. Step 6: Final answer
    x = 595,605.98

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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.