Home / 885,888.05-1,329,025.87-286,909.76

Finding the Fourth Proportional to 885,888.05, 1,329,025.87 and 286,909.76

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Solution

The fourth proportional to 885,888.05, 1,329,025.87 and 286,909.76 is: 430,427.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,888.05 : 1,329,025.87 = 286,909.76 : x
  2. Step 2: Convert to fraction form
    885,888.05/1,329,025.87 = 286,909.76/x
  3. Step 3: Cross multiply
    885,888.05x = 1,329,025.87 × 286,909.76
  4. Step 4: Simplify right side
    885,888.05x = 381,310,491,268.14
  5. Step 5: Solve for x
    x = 381,310,491,268.14/885,888.05
  6. Step 6: Final answer
    x = 430,427.40

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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.