Home / 917,568.46-1,376,366.53-318,548.65

Finding the Fourth Proportional to 917,568.46, 1,376,366.53 and 318,548.65

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Solution

The fourth proportional to 917,568.46, 1,376,366.53 and 318,548.65 is: 477,827.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,568.46 : 1,376,366.53 = 318,548.65 : x
  2. Step 2: Convert to fraction form
    917,568.46/1,376,366.53 = 318,548.65/x
  3. Step 3: Cross multiply
    917,568.46x = 1,376,366.53 × 318,548.65
  4. Step 4: Simplify right side
    917,568.46x = 438,439,700,036.69
  5. Step 5: Solve for x
    x = 438,439,700,036.69/917,568.46
  6. Step 6: Final answer
    x = 477,827.78

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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.