Home / 1,071,378.53-1,478,520.33-587,988.65

Finding the Fourth Proportional to 1,071,378.53, 1,478,520.33 and 587,988.65

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Solution

The fourth proportional to 1,071,378.53, 1,478,520.33 and 587,988.65 is: 811,434.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,071,378.53 : 1,478,520.33 = 587,988.65 : x
  2. Step 2: Convert to fraction form
    1,071,378.53/1,478,520.33 = 587,988.65/x
  3. Step 3: Cross multiply
    1,071,378.53x = 1,478,520.33 × 587,988.65
  4. Step 4: Simplify right side
    1,071,378.53x = 869,353,172,834.26
  5. Step 5: Solve for x
    x = 869,353,172,834.26/1,071,378.53
  6. Step 6: Final answer
    x = 811,434.20

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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.