Home / 801,949.11-1,106,689.74-439,386.72

Finding the Fourth Proportional to 801,949.11, 1,106,689.74 and 439,386.72

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Solution

The fourth proportional to 801,949.11, 1,106,689.74 and 439,386.72 is: 606,353.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,949.11 : 1,106,689.74 = 439,386.72 : x
  2. Step 2: Convert to fraction form
    801,949.11/1,106,689.74 = 439,386.72/x
  3. Step 3: Cross multiply
    801,949.11x = 1,106,689.74 × 439,386.72
  4. Step 4: Simplify right side
    801,949.11x = 486,264,774,916.25
  5. Step 5: Solve for x
    x = 486,264,774,916.25/801,949.11
  6. Step 6: Final answer
    x = 606,353.66

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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.