Home / 1,145,346.40-1,718,019.60-907,400.80

Finding the Fourth Proportional to 1,145,346.40, 1,718,019.60 and 907,400.80

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Solution

The fourth proportional to 1,145,346.40, 1,718,019.60 and 907,400.80 is: 1,361,101.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,346.40 : 1,718,019.60 = 907,400.80 : x
  2. Step 2: Convert to fraction form
    1,145,346.40/1,718,019.60 = 907,400.80/x
  3. Step 3: Cross multiply
    1,145,346.40x = 1,718,019.60 × 907,400.80
  4. Step 4: Simplify right side
    1,145,346.40x = 1,558,932,359,455.68
  5. Step 5: Solve for x
    x = 1,558,932,359,455.68/1,145,346.40
  6. Step 6: Final answer
    x = 1,361,101.20

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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.