Home / 1,441,479.65-1,988,911.89-860,589.72

Finding the Fourth Proportional to 1,441,479.65, 1,988,911.89 and 860,589.72

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Solution

The fourth proportional to 1,441,479.65, 1,988,911.89 and 860,589.72 is: 1,187,416.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,441,479.65 : 1,988,911.89 = 860,589.72 : x
  2. Step 2: Convert to fraction form
    1,441,479.65/1,988,911.89 = 860,589.72/x
  3. Step 3: Cross multiply
    1,441,479.65x = 1,988,911.89 × 860,589.72
  4. Step 4: Simplify right side
    1,441,479.65x = 1,711,637,126,519.77
  5. Step 5: Solve for x
    x = 1,711,637,126,519.77/1,441,479.65
  6. Step 6: Final answer
    x = 1,187,416.79

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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.