Home / 885,689.31-1,328,744.77-286,650.47

Finding the Fourth Proportional to 885,689.31, 1,328,744.77 and 286,650.47

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Solution

The fourth proportional to 885,689.31, 1,328,744.77 and 286,650.47 is: 430,043.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,689.31 : 1,328,744.77 = 286,650.47 : x
  2. Step 2: Convert to fraction form
    885,689.31/1,328,744.77 = 286,650.47/x
  3. Step 3: Cross multiply
    885,689.31x = 1,328,744.77 × 286,650.47
  4. Step 4: Simplify right side
    885,689.31x = 380,885,312,101.80
  5. Step 5: Solve for x
    x = 380,885,312,101.80/885,689.31
  6. Step 6: Final answer
    x = 430,043.93

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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.