Home / 885,727.52-1,328,802.18-286,688.78

Finding the Fourth Proportional to 885,727.52, 1,328,802.18 and 286,688.78

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Solution

The fourth proportional to 885,727.52, 1,328,802.18 and 286,688.78 is: 430,101.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,727.52 : 1,328,802.18 = 286,688.78 : x
  2. Step 2: Convert to fraction form
    885,727.52/1,328,802.18 = 286,688.78/x
  3. Step 3: Cross multiply
    885,727.52x = 1,328,802.18 × 286,688.78
  4. Step 4: Simplify right side
    885,727.52x = 380,952,675,845.54
  5. Step 5: Solve for x
    x = 380,952,675,845.54/885,727.52
  6. Step 6: Final answer
    x = 430,101.43

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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.