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Finding the Fourth Proportional to 1,298,649.92, 1,947,974.87 and 352,020.63

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Solution

The fourth proportional to 1,298,649.92, 1,947,974.87 and 352,020.63 is: 528,030.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,649.92 : 1,947,974.87 = 352,020.63 : x
  2. Step 2: Convert to fraction form
    1,298,649.92/1,947,974.87 = 352,020.63/x
  3. Step 3: Cross multiply
    1,298,649.92x = 1,947,974.87 × 352,020.63
  4. Step 4: Simplify right side
    1,298,649.92x = 685,727,349,146.53
  5. Step 5: Solve for x
    x = 685,727,349,146.53/1,298,649.92
  6. Step 6: Final answer
    x = 528,030.95

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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.