Home / 758,835.90-1,138,273.29-359,382.78

Finding the Fourth Proportional to 758,835.90, 1,138,273.29 and 359,382.78

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Solution

The fourth proportional to 758,835.90, 1,138,273.29 and 359,382.78 is: 539,083.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,835.90 : 1,138,273.29 = 359,382.78 : x
  2. Step 2: Convert to fraction form
    758,835.90/1,138,273.29 = 359,382.78/x
  3. Step 3: Cross multiply
    758,835.90x = 1,138,273.29 × 359,382.78
  4. Step 4: Simplify right side
    758,835.90x = 409,075,819,359.95
  5. Step 5: Solve for x
    x = 409,075,819,359.95/758,835.90
  6. Step 6: Final answer
    x = 539,083.38

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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.