Home / 685,916.20-1,027,124.70-545,948.20

Finding the Fourth Proportional to 685,916.20, 1,027,124.70 and 545,948.20

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Solution

The fourth proportional to 685,916.20, 1,027,124.70 and 545,948.20 is: 817,529.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,916.20 : 1,027,124.70 = 545,948.20 : x
  2. Step 2: Convert to fraction form
    685,916.20/1,027,124.70 = 545,948.20/x
  3. Step 3: Cross multiply
    685,916.20x = 1,027,124.70 × 545,948.20
  4. Step 4: Simplify right side
    685,916.20x = 560,756,881,140.54
  5. Step 5: Solve for x
    x = 560,756,881,140.54/685,916.20
  6. Step 6: Final answer
    x = 817,529.72

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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.