Home / 761,165.88-1,141,909.14-287,840.76

Finding the Fourth Proportional to 761,165.88, 1,141,909.14 and 287,840.76

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Solution

The fourth proportional to 761,165.88, 1,141,909.14 and 287,840.76 is: 431,821.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,165.88 : 1,141,909.14 = 287,840.76 : x
  2. Step 2: Convert to fraction form
    761,165.88/1,141,909.14 = 287,840.76/x
  3. Step 3: Cross multiply
    761,165.88x = 1,141,909.14 × 287,840.76
  4. Step 4: Simplify right side
    761,165.88x = 328,687,994,708.55
  5. Step 5: Solve for x
    x = 328,687,994,708.55/761,165.88
  6. Step 6: Final answer
    x = 431,821.77

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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.