Home / 766,340.30-1,057,582.23-426,808.55

Finding the Fourth Proportional to 766,340.30, 1,057,582.23 and 426,808.55

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Solution

The fourth proportional to 766,340.30, 1,057,582.23 and 426,808.55 is: 589,013.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,340.30 : 1,057,582.23 = 426,808.55 : x
  2. Step 2: Convert to fraction form
    766,340.30/1,057,582.23 = 426,808.55/x
  3. Step 3: Cross multiply
    766,340.30x = 1,057,582.23 × 426,808.55
  4. Step 4: Simplify right side
    766,340.30x = 451,385,138,092.07
  5. Step 5: Solve for x
    x = 451,385,138,092.07/766,340.30
  6. Step 6: Final answer
    x = 589,013.96

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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.