Home / 766,035-1,057,135.59-426,510.54

Finding the Fourth Proportional to 766,035, 1,057,135.59 and 426,510.54

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Solution

The fourth proportional to 766,035, 1,057,135.59 and 426,510.54 is: 588,588.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,035 : 1,057,135.59 = 426,510.54 : x
  2. Step 2: Convert to fraction form
    766,035/1,057,135.59 = 426,510.54/x
  3. Step 3: Cross multiply
    766,035x = 1,057,135.59 × 426,510.54
  4. Step 4: Simplify right side
    766,035x = 450,879,471,344.12
  5. Step 5: Solve for x
    x = 450,879,471,344.12/766,035
  6. Step 6: Final answer
    x = 588,588.60

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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.