Home / 1,315,279.73-1,972,977-416,787.68

Finding the Fourth Proportional to 1,315,279.73, 1,972,977 and 416,787.68

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Solution

The fourth proportional to 1,315,279.73, 1,972,977 and 416,787.68 is: 625,199.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,279.73 : 1,972,977 = 416,787.68 : x
  2. Step 2: Convert to fraction form
    1,315,279.73/1,972,977 = 416,787.68/x
  3. Step 3: Cross multiply
    1,315,279.73x = 1,972,977 × 416,787.68
  4. Step 4: Simplify right side
    1,315,279.73x = 822,312,506,523.36
  5. Step 5: Solve for x
    x = 822,312,506,523.36/1,315,279.73
  6. Step 6: Final answer
    x = 625,199.71

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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.