Home / 517,943.60-776,917.20-143,966.24

Finding the Fourth Proportional to 517,943.60, 776,917.20 and 143,966.24

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Solution

The fourth proportional to 517,943.60, 776,917.20 and 143,966.24 is: 215,949.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,943.60 : 776,917.20 = 143,966.24 : x
  2. Step 2: Convert to fraction form
    517,943.60/776,917.20 = 143,966.24/x
  3. Step 3: Cross multiply
    517,943.60x = 776,917.20 × 143,966.24
  4. Step 4: Simplify right side
    517,943.60x = 111,849,848,075.33
  5. Step 5: Solve for x
    x = 111,849,848,075.33/517,943.60
  6. Step 6: Final answer
    x = 215,949.86

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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.