Home / 740,819.32-1,022,330.77-401,287.57

Finding the Fourth Proportional to 740,819.32, 1,022,330.77 and 401,287.57

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Solution

The fourth proportional to 740,819.32, 1,022,330.77 and 401,287.57 is: 553,776.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,819.32 : 1,022,330.77 = 401,287.57 : x
  2. Step 2: Convert to fraction form
    740,819.32/1,022,330.77 = 401,287.57/x
  3. Step 3: Cross multiply
    740,819.32x = 1,022,330.77 × 401,287.57
  4. Step 4: Simplify right side
    740,819.32x = 410,248,626,870.48
  5. Step 5: Solve for x
    x = 410,248,626,870.48/740,819.32
  6. Step 6: Final answer
    x = 553,776.90

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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.