Home / 740,785.48-1,022,284.20-401,253.88

Finding the Fourth Proportional to 740,785.48, 1,022,284.20 and 401,253.88

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Solution

The fourth proportional to 740,785.48, 1,022,284.20 and 401,253.88 is: 553,730.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,785.48 : 1,022,284.20 = 401,253.88 : x
  2. Step 2: Convert to fraction form
    740,785.48/1,022,284.20 = 401,253.88/x
  3. Step 3: Cross multiply
    740,785.48x = 1,022,284.20 × 401,253.88
  4. Step 4: Simplify right side
    740,785.48x = 410,195,501,712.70
  5. Step 5: Solve for x
    x = 410,195,501,712.70/740,785.48
  6. Step 6: Final answer
    x = 553,730.48

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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.