Home / 885,891.06-1,329,030.38-286,912.76

Finding the Fourth Proportional to 885,891.06, 1,329,030.38 and 286,912.76

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Solution

The fourth proportional to 885,891.06, 1,329,030.38 and 286,912.76 is: 430,431.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,891.06 : 1,329,030.38 = 286,912.76 : x
  2. Step 2: Convert to fraction form
    885,891.06/1,329,030.38 = 286,912.76/x
  3. Step 3: Cross multiply
    885,891.06x = 1,329,030.38 × 286,912.76
  4. Step 4: Simplify right side
    885,891.06x = 381,315,774,449.65
  5. Step 5: Solve for x
    x = 381,315,774,449.65/885,891.06
  6. Step 6: Final answer
    x = 430,431.90

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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.