Home / 986,389.96-1,479,614.28-387,501.88

Finding the Fourth Proportional to 986,389.96, 1,479,614.28 and 387,501.88

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Solution

The fourth proportional to 986,389.96, 1,479,614.28 and 387,501.88 is: 581,264.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,389.96 : 1,479,614.28 = 387,501.88 : x
  2. Step 2: Convert to fraction form
    986,389.96/1,479,614.28 = 387,501.88/x
  3. Step 3: Cross multiply
    986,389.96x = 1,479,614.28 × 387,501.88
  4. Step 4: Simplify right side
    986,389.96x = 573,353,315,174.85
  5. Step 5: Solve for x
    x = 573,353,315,174.85/986,389.96
  6. Step 6: Final answer
    x = 581,264.35

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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.