Home / 986,560.20-1,479,881.45-312,626.58

Finding the Fourth Proportional to 986,560.20, 1,479,881.45 and 312,626.58

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Solution

The fourth proportional to 986,560.20, 1,479,881.45 and 312,626.58 is: 468,952.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,560.20 : 1,479,881.45 = 312,626.58 : x
  2. Step 2: Convert to fraction form
    986,560.20/1,479,881.45 = 312,626.58/x
  3. Step 3: Cross multiply
    986,560.20x = 1,479,881.45 × 312,626.58
  4. Step 4: Simplify right side
    986,560.20x = 462,650,277,300.51
  5. Step 5: Solve for x
    x = 462,650,277,300.51/986,560.20
  6. Step 6: Final answer
    x = 468,952.91

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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.