Home / 761,047.56-1,141,472.70-287,671.32

Finding the Fourth Proportional to 761,047.56, 1,141,472.70 and 287,671.32

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Solution

The fourth proportional to 761,047.56, 1,141,472.70 and 287,671.32 is: 431,469.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,047.56 : 1,141,472.70 = 287,671.32 : x
  2. Step 2: Convert to fraction form
    761,047.56/1,141,472.70 = 287,671.32/x
  3. Step 3: Cross multiply
    761,047.56x = 1,141,472.70 × 287,671.32
  4. Step 4: Simplify right side
    761,047.56x = 328,368,958,352.96
  5. Step 5: Solve for x
    x = 328,368,958,352.96/761,047.56
  6. Step 6: Final answer
    x = 431,469.69

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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.