Home / 1,107,378.70-1,661,068.05-930,231.70

Finding the Fourth Proportional to 1,107,378.70, 1,661,068.05 and 930,231.70

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Solution

The fourth proportional to 1,107,378.70, 1,661,068.05 and 930,231.70 is: 1,395,347.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,378.70 : 1,661,068.05 = 930,231.70 : x
  2. Step 2: Convert to fraction form
    1,107,378.70/1,661,068.05 = 930,231.70/x
  3. Step 3: Cross multiply
    1,107,378.70x = 1,661,068.05 × 930,231.70
  4. Step 4: Simplify right side
    1,107,378.70x = 1,545,178,155,967.19
  5. Step 5: Solve for x
    x = 1,545,178,155,967.19/1,107,378.70
  6. Step 6: Final answer
    x = 1,395,347.55

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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.