Home / 986,012.34-1,479,240.03-312,134.08

Finding the Fourth Proportional to 986,012.34, 1,479,240.03 and 312,134.08

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Solution

The fourth proportional to 986,012.34, 1,479,240.03 and 312,134.08 is: 468,271.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,012.34 : 1,479,240.03 = 312,134.08 : x
  2. Step 2: Convert to fraction form
    986,012.34/1,479,240.03 = 312,134.08/x
  3. Step 3: Cross multiply
    986,012.34x = 1,479,240.03 × 312,134.08
  4. Step 4: Simplify right side
    986,012.34x = 461,721,225,863.22
  5. Step 5: Solve for x
    x = 461,721,225,863.22/986,012.34
  6. Step 6: Final answer
    x = 468,271.24

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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.