Home / 767,920.51-1,059,941.11-445,734.40

Finding the Fourth Proportional to 767,920.51, 1,059,941.11 and 445,734.40

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Solution

The fourth proportional to 767,920.51, 1,059,941.11 and 445,734.40 is: 615,235.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,920.51 : 1,059,941.11 = 445,734.40 : x
  2. Step 2: Convert to fraction form
    767,920.51/1,059,941.11 = 445,734.40/x
  3. Step 3: Cross multiply
    767,920.51x = 1,059,941.11 × 445,734.40
  4. Step 4: Simplify right side
    767,920.51x = 472,452,214,860.80
  5. Step 5: Solve for x
    x = 472,452,214,860.80/767,920.51
  6. Step 6: Final answer
    x = 615,235.83

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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.