Home / 1,071,379.53-1,478,521.71-587,989.65

Finding the Fourth Proportional to 1,071,379.53, 1,478,521.71 and 587,989.65

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Solution

The fourth proportional to 1,071,379.53, 1,478,521.71 and 587,989.65 is: 811,435.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,071,379.53 : 1,478,521.71 = 587,989.65 : x
  2. Step 2: Convert to fraction form
    1,071,379.53/1,478,521.71 = 587,989.65/x
  3. Step 3: Cross multiply
    1,071,379.53x = 1,478,521.71 × 587,989.65
  4. Step 4: Simplify right side
    1,071,379.53x = 869,355,462,780.30
  5. Step 5: Solve for x
    x = 869,355,462,780.30/1,071,379.53
  6. Step 6: Final answer
    x = 811,435.57

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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.