Home / 687,361.71-1,030,715.31-282,490.65

Finding the Fourth Proportional to 687,361.71, 1,030,715.31 and 282,490.65

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Solution

The fourth proportional to 687,361.71, 1,030,715.31 and 282,490.65 is: 423,601.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,361.71 : 1,030,715.31 = 282,490.65 : x
  2. Step 2: Convert to fraction form
    687,361.71/1,030,715.31 = 282,490.65/x
  3. Step 3: Cross multiply
    687,361.71x = 1,030,715.31 × 282,490.65
  4. Step 4: Simplify right side
    687,361.71x = 291,167,437,886.85
  5. Step 5: Solve for x
    x = 291,167,437,886.85/687,361.71
  6. Step 6: Final answer
    x = 423,601.48

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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.