Home / 766,528.24-1,057,740.36-426,989.20

Finding the Fourth Proportional to 766,528.24, 1,057,740.36 and 426,989.20

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Solution

The fourth proportional to 766,528.24, 1,057,740.36 and 426,989.20 is: 589,206.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,528.24 : 1,057,740.36 = 426,989.20 : x
  2. Step 2: Convert to fraction form
    766,528.24/1,057,740.36 = 426,989.20/x
  3. Step 3: Cross multiply
    766,528.24x = 1,057,740.36 × 426,989.20
  4. Step 4: Simplify right side
    766,528.24x = 451,643,710,124.11
  5. Step 5: Solve for x
    x = 451,643,710,124.11/766,528.24
  6. Step 6: Final answer
    x = 589,206.88

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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.