Home / 878,389.56-1,212,177.48-475,981.56

Finding the Fourth Proportional to 878,389.56, 1,212,177.48 and 475,981.56

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Solution

The fourth proportional to 878,389.56, 1,212,177.48 and 475,981.56 is: 656,854.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,389.56 : 1,212,177.48 = 475,981.56 : x
  2. Step 2: Convert to fraction form
    878,389.56/1,212,177.48 = 475,981.56/x
  3. Step 3: Cross multiply
    878,389.56x = 1,212,177.48 × 475,981.56
  4. Step 4: Simplify right side
    878,389.56x = 576,974,127,927.27
  5. Step 5: Solve for x
    x = 576,974,127,927.27/878,389.56
  6. Step 6: Final answer
    x = 656,854.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.