Home / 1,207,400.10-1,809,026.55-786,459.30

Finding the Fourth Proportional to 1,207,400.10, 1,809,026.55 and 786,459.30

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Solution

The fourth proportional to 1,207,400.10, 1,809,026.55 and 786,459.30 is: 1,178,338.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,400.10 : 1,809,026.55 = 786,459.30 : x
  2. Step 2: Convert to fraction form
    1,207,400.10/1,809,026.55 = 786,459.30/x
  3. Step 3: Cross multiply
    1,207,400.10x = 1,809,026.55 × 786,459.30
  4. Step 4: Simplify right side
    1,207,400.10x = 1,422,725,754,194.42
  5. Step 5: Solve for x
    x = 1,422,725,754,194.42/1,207,400.10
  6. Step 6: Final answer
    x = 1,178,338.28

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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.