Home / 885,200.40-1,328,128.65-286,181.10

Finding the Fourth Proportional to 885,200.40, 1,328,128.65 and 286,181.10

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Solution

The fourth proportional to 885,200.40, 1,328,128.65 and 286,181.10 is: 429,377.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,200.40 : 1,328,128.65 = 286,181.10 : x
  2. Step 2: Convert to fraction form
    885,200.40/1,328,128.65 = 286,181.10/x
  3. Step 3: Cross multiply
    885,200.40x = 1,328,128.65 × 286,181.10
  4. Step 4: Simplify right side
    885,200.40x = 380,085,317,998.52
  5. Step 5: Solve for x
    x = 380,085,317,998.52/885,200.40
  6. Step 6: Final answer
    x = 429,377.71

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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.