Home / 801,948.12-1,106,688.36-439,385.72

Finding the Fourth Proportional to 801,948.12, 1,106,688.36 and 439,385.72

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Solution

The fourth proportional to 801,948.12, 1,106,688.36 and 439,385.72 is: 606,352.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,948.12 : 1,106,688.36 = 439,385.72 : x
  2. Step 2: Convert to fraction form
    801,948.12/1,106,688.36 = 439,385.72/x
  3. Step 3: Cross multiply
    801,948.12x = 1,106,688.36 × 439,385.72
  4. Step 4: Simplify right side
    801,948.12x = 486,263,061,874.22
  5. Step 5: Solve for x
    x = 486,263,061,874.22/801,948.12
  6. Step 6: Final answer
    x = 606,352.27

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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.