Home / 986,833.11-1,480,303.49-312,865.66

Finding the Fourth Proportional to 986,833.11, 1,480,303.49 and 312,865.66

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Solution

The fourth proportional to 986,833.11, 1,480,303.49 and 312,865.66 is: 469,315.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,833.11 : 1,480,303.49 = 312,865.66 : x
  2. Step 2: Convert to fraction form
    986,833.11/1,480,303.49 = 312,865.66/x
  3. Step 3: Cross multiply
    986,833.11x = 1,480,303.49 × 312,865.66
  4. Step 4: Simplify right side
    986,833.11x = 463,136,126,834.83
  5. Step 5: Solve for x
    x = 463,136,126,834.83/986,833.11
  6. Step 6: Final answer
    x = 469,315.55

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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.