Home / 1,679,222.25-2,317,328.33-915,278.85

Finding the Fourth Proportional to 1,679,222.25, 2,317,328.33 and 915,278.85

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Solution

The fourth proportional to 1,679,222.25, 2,317,328.33 and 915,278.85 is: 1,263,085.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,679,222.25 : 2,317,328.33 = 915,278.85 : x
  2. Step 2: Convert to fraction form
    1,679,222.25/2,317,328.33 = 915,278.85/x
  3. Step 3: Cross multiply
    1,679,222.25x = 2,317,328.33 × 915,278.85
  4. Step 4: Simplify right side
    1,679,222.25x = 2,121,001,604,378.43
  5. Step 5: Solve for x
    x = 2,121,001,604,378.43/1,679,222.25
  6. Step 6: Final answer
    x = 1,263,085.70

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.