Home / 646,923.28-892,760.18-356,545.50

Finding the Fourth Proportional to 646,923.28, 892,760.18 and 356,545.50

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Solution

The fourth proportional to 646,923.28, 892,760.18 and 356,545.50 is: 492,036.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,923.28 : 892,760.18 = 356,545.50 : x
  2. Step 2: Convert to fraction form
    646,923.28/892,760.18 = 356,545.50/x
  3. Step 3: Cross multiply
    646,923.28x = 892,760.18 × 356,545.50
  4. Step 4: Simplify right side
    646,923.28x = 318,309,621,633.18
  5. Step 5: Solve for x
    x = 318,309,621,633.18/646,923.28
  6. Step 6: Final answer
    x = 492,036.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.