Home / 761,052.56-1,141,480.20-287,676.32

Finding the Fourth Proportional to 761,052.56, 1,141,480.20 and 287,676.32

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Solution

The fourth proportional to 761,052.56, 1,141,480.20 and 287,676.32 is: 431,477.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,052.56 : 1,141,480.20 = 287,676.32 : x
  2. Step 2: Convert to fraction form
    761,052.56/1,141,480.20 = 287,676.32/x
  3. Step 3: Cross multiply
    761,052.56x = 1,141,480.20 × 287,676.32
  4. Step 4: Simplify right side
    761,052.56x = 328,376,823,288.86
  5. Step 5: Solve for x
    x = 328,376,823,288.86/761,052.56
  6. Step 6: Final answer
    x = 431,477.19

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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.