Home / 885,956.60-1,329,129.30-286,815.80

Finding the Fourth Proportional to 885,956.60, 1,329,129.30 and 286,815.80

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Solution

The fourth proportional to 885,956.60, 1,329,129.30 and 286,815.80 is: 430,286.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,956.60 : 1,329,129.30 = 286,815.80 : x
  2. Step 2: Convert to fraction form
    885,956.60/1,329,129.30 = 286,815.80/x
  3. Step 3: Cross multiply
    885,956.60x = 1,329,129.30 × 286,815.80
  4. Step 4: Simplify right side
    885,956.60x = 381,215,283,482.94
  5. Step 5: Solve for x
    x = 381,215,283,482.94/885,956.60
  6. Step 6: Final answer
    x = 430,286.63

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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.