Home / 986,867.91-1,480,354.74-313,000.38

Finding the Fourth Proportional to 986,867.91, 1,480,354.74 and 313,000.38

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Solution

The fourth proportional to 986,867.91, 1,480,354.74 and 313,000.38 is: 469,517.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,867.91 : 1,480,354.74 = 313,000.38 : x
  2. Step 2: Convert to fraction form
    986,867.91/1,480,354.74 = 313,000.38/x
  3. Step 3: Cross multiply
    986,867.91x = 1,480,354.74 × 313,000.38
  4. Step 4: Simplify right side
    986,867.91x = 463,351,596,154.80
  5. Step 5: Solve for x
    x = 463,351,596,154.80/986,867.91
  6. Step 6: Final answer
    x = 469,517.34

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1.5x scale

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.