Home / 842,715.76-1,263,483.42-310,167.76

Finding the Fourth Proportional to 842,715.76, 1,263,483.42 and 310,167.76

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Solution

The fourth proportional to 842,715.76, 1,263,483.42 and 310,167.76 is: 465,034.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,715.76 : 1,263,483.42 = 310,167.76 : x
  2. Step 2: Convert to fraction form
    842,715.76/1,263,483.42 = 310,167.76/x
  3. Step 3: Cross multiply
    842,715.76x = 1,263,483.42 × 310,167.76
  4. Step 4: Simplify right side
    842,715.76x = 391,891,822,178.54
  5. Step 5: Solve for x
    x = 391,891,822,178.54/842,715.76
  6. Step 6: Final answer
    x = 465,034.41

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1.5x scale

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.