Home / 885,890.55-1,329,029.62-286,912.26

Finding the Fourth Proportional to 885,890.55, 1,329,029.62 and 286,912.26

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Solution

The fourth proportional to 885,890.55, 1,329,029.62 and 286,912.26 is: 430,431.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,890.55 : 1,329,029.62 = 286,912.26 : x
  2. Step 2: Convert to fraction form
    885,890.55/1,329,029.62 = 286,912.26/x
  3. Step 3: Cross multiply
    885,890.55x = 1,329,029.62 × 286,912.26
  4. Step 4: Simplify right side
    885,890.55x = 381,314,891,881.14
  5. Step 5: Solve for x
    x = 381,314,891,881.14/885,890.55
  6. Step 6: Final answer
    x = 430,431.15

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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.