Home / 917,579.76-1,376,383.51-318,559.95

Finding the Fourth Proportional to 917,579.76, 1,376,383.51 and 318,559.95

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Solution

The fourth proportional to 917,579.76, 1,376,383.51 and 318,559.95 is: 477,844.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,579.76 : 1,376,383.51 = 318,559.95 : x
  2. Step 2: Convert to fraction form
    917,579.76/1,376,383.51 = 318,559.95/x
  3. Step 3: Cross multiply
    917,579.76x = 1,376,383.51 × 318,559.95
  4. Step 4: Simplify right side
    917,579.76x = 438,460,662,126.43
  5. Step 5: Solve for x
    x = 438,460,662,126.43/917,579.76
  6. Step 6: Final answer
    x = 477,844.74

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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.