Home / 855,402.20-1,281,720.90-539,293.40

Finding the Fourth Proportional to 855,402.20, 1,281,720.90 and 539,293.40

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Solution

The fourth proportional to 855,402.20, 1,281,720.90 and 539,293.40 is: 808,068.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,402.20 : 1,281,720.90 = 539,293.40 : x
  2. Step 2: Convert to fraction form
    855,402.20/1,281,720.90 = 539,293.40/x
  3. Step 3: Cross multiply
    855,402.20x = 1,281,720.90 × 539,293.40
  4. Step 4: Simplify right side
    855,402.20x = 691,223,622,012.06
  5. Step 5: Solve for x
    x = 691,223,622,012.06/855,402.20
  6. Step 6: Final answer
    x = 808,068.56

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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.