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Finding the Fourth Proportional to 885,726.74, 1,328,801.07 and 286,688

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Solution

The fourth proportional to 885,726.74, 1,328,801.07 and 286,688 is: 430,100.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,726.74 : 1,328,801.07 = 286,688 : x
  2. Step 2: Convert to fraction form
    885,726.74/1,328,801.07 = 286,688/x
  3. Step 3: Cross multiply
    885,726.74x = 1,328,801.07 × 286,688
  4. Step 4: Simplify right side
    885,726.74x = 380,951,321,156.16
  5. Step 5: Solve for x
    x = 380,951,321,156.16/885,726.74
  6. Step 6: Final answer
    x = 430,100.28

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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.