Home / 740,632.80-1,022,073.84-418,343.52

Finding the Fourth Proportional to 740,632.80, 1,022,073.84 and 418,343.52

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Solution

The fourth proportional to 740,632.80, 1,022,073.84 and 418,343.52 is: 577,314.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,632.80 : 1,022,073.84 = 418,343.52 : x
  2. Step 2: Convert to fraction form
    740,632.80/1,022,073.84 = 418,343.52/x
  3. Step 3: Cross multiply
    740,632.80x = 1,022,073.84 × 418,343.52
  4. Step 4: Simplify right side
    740,632.80x = 427,577,967,925.52
  5. Step 5: Solve for x
    x = 427,577,967,925.52/740,632.80
  6. Step 6: Final answer
    x = 577,314.38

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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.