Home / 766,338.30-1,057,579.47-426,806.55

Finding the Fourth Proportional to 766,338.30, 1,057,579.47 and 426,806.55

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Solution

The fourth proportional to 766,338.30, 1,057,579.47 and 426,806.55 is: 589,011.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,338.30 : 1,057,579.47 = 426,806.55 : x
  2. Step 2: Convert to fraction form
    766,338.30/1,057,579.47 = 426,806.55/x
  3. Step 3: Cross multiply
    766,338.30x = 1,057,579.47 × 426,806.55
  4. Step 4: Simplify right side
    766,338.30x = 451,381,844,941.53
  5. Step 5: Solve for x
    x = 451,381,844,941.53/766,338.30
  6. Step 6: Final answer
    x = 589,011.20

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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.