Home / 755,422.40-1,134,008.40-456,240.80

Finding the Fourth Proportional to 755,422.40, 1,134,008.40 and 456,240.80

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Solution

The fourth proportional to 755,422.40, 1,134,008.40 and 456,240.80 is: 684,889.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,422.40 : 1,134,008.40 = 456,240.80 : x
  2. Step 2: Convert to fraction form
    755,422.40/1,134,008.40 = 456,240.80/x
  3. Step 3: Cross multiply
    755,422.40x = 1,134,008.40 × 456,240.80
  4. Step 4: Simplify right side
    755,422.40x = 517,380,899,622.72
  5. Step 5: Solve for x
    x = 517,380,899,622.72/755,422.40
  6. Step 6: Final answer
    x = 684,889.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.