Home / 761,947.20-1,141,917.90-425,146.38

Finding the Fourth Proportional to 761,947.20, 1,141,917.90 and 425,146.38

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Solution

The fourth proportional to 761,947.20, 1,141,917.90 and 425,146.38 is: 637,159.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,947.20 : 1,141,917.90 = 425,146.38 : x
  2. Step 2: Convert to fraction form
    761,947.20/1,141,917.90 = 425,146.38/x
  3. Step 3: Cross multiply
    761,947.20x = 1,141,917.90 × 425,146.38
  4. Step 4: Simplify right side
    761,947.20x = 485,482,261,442.20
  5. Step 5: Solve for x
    x = 485,482,261,442.20/761,947.20
  6. Step 6: Final answer
    x = 637,159.98

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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.