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Finding the Fourth Proportional to 468,353.24, 646,343.12 and 287,030.13

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Solution

The fourth proportional to 468,353.24, 646,343.12 and 287,030.13 is: 396,111.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,353.24 : 646,343.12 = 287,030.13 : x
  2. Step 2: Convert to fraction form
    468,353.24/646,343.12 = 287,030.13/x
  3. Step 3: Cross multiply
    468,353.24x = 646,343.12 × 287,030.13
  4. Step 4: Simplify right side
    468,353.24x = 185,519,948,323.06
  5. Step 5: Solve for x
    x = 185,519,948,323.06/468,353.24
  6. Step 6: Final answer
    x = 396,111.17

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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.