Home / 765,969.88-1,057,038.42-426,518.20

Finding the Fourth Proportional to 765,969.88, 1,057,038.42 and 426,518.20

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Solution

The fourth proportional to 765,969.88, 1,057,038.42 and 426,518.20 is: 588,595.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,969.88 : 1,057,038.42 = 426,518.20 : x
  2. Step 2: Convert to fraction form
    765,969.88/1,057,038.42 = 426,518.20/x
  3. Step 3: Cross multiply
    765,969.88x = 1,057,038.42 × 426,518.20
  4. Step 4: Simplify right side
    765,969.88x = 450,846,124,229.24
  5. Step 5: Solve for x
    x = 450,846,124,229.24/765,969.88
  6. Step 6: Final answer
    x = 588,595.11

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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.