Home / 1,408,802.80-2,109,471.66-742,555.12

Finding the Fourth Proportional to 1,408,802.80, 2,109,471.66 and 742,555.12

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Solution

The fourth proportional to 1,408,802.80, 2,109,471.66 and 742,555.12 is: 1,111,865.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,408,802.80 : 2,109,471.66 = 742,555.12 : x
  2. Step 2: Convert to fraction form
    1,408,802.80/2,109,471.66 = 742,555.12/x
  3. Step 3: Cross multiply
    1,408,802.80x = 2,109,471.66 × 742,555.12
  4. Step 4: Simplify right side
    1,408,802.80x = 1,566,398,981,627.90
  5. Step 5: Solve for x
    x = 1,566,398,981,627.90/1,408,802.80
  6. Step 6: Final answer
    x = 1,111,865.32

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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.