Home / 754,126.19-1,040,700.90-409,962.78

Finding the Fourth Proportional to 754,126.19, 1,040,700.90 and 409,962.78

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Solution

The fourth proportional to 754,126.19, 1,040,700.90 and 409,962.78 is: 565,752.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,126.19 : 1,040,700.90 = 409,962.78 : x
  2. Step 2: Convert to fraction form
    754,126.19/1,040,700.90 = 409,962.78/x
  3. Step 3: Cross multiply
    754,126.19x = 1,040,700.90 × 409,962.78
  4. Step 4: Simplify right side
    754,126.19x = 426,648,634,112.50
  5. Step 5: Solve for x
    x = 426,648,634,112.50/754,126.19
  6. Step 6: Final answer
    x = 565,752.31

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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.