Home / 1,380,918.30-2,071,377.45-434,579.10

Finding the Fourth Proportional to 1,380,918.30, 2,071,377.45 and 434,579.10

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Solution

The fourth proportional to 1,380,918.30, 2,071,377.45 and 434,579.10 is: 651,868.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,918.30 : 2,071,377.45 = 434,579.10 : x
  2. Step 2: Convert to fraction form
    1,380,918.30/2,071,377.45 = 434,579.10/x
  3. Step 3: Cross multiply
    1,380,918.30x = 2,071,377.45 × 434,579.10
  4. Step 4: Simplify right side
    1,380,918.30x = 900,177,347,981.30
  5. Step 5: Solve for x
    x = 900,177,347,981.30/1,380,918.30
  6. Step 6: Final answer
    x = 651,868.65

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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.