Home / 1,405,647.32-2,108,470.95-340,689.39

Finding the Fourth Proportional to 1,405,647.32, 2,108,470.95 and 340,689.39

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Solution

The fourth proportional to 1,405,647.32, 2,108,470.95 and 340,689.39 is: 511,034.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,647.32 : 2,108,470.95 = 340,689.39 : x
  2. Step 2: Convert to fraction form
    1,405,647.32/2,108,470.95 = 340,689.39/x
  3. Step 3: Cross multiply
    1,405,647.32x = 2,108,470.95 × 340,689.39
  4. Step 4: Simplify right side
    1,405,647.32x = 718,333,669,542.42
  5. Step 5: Solve for x
    x = 718,333,669,542.42/1,405,647.32
  6. Step 6: Final answer
    x = 511,034.07

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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.