Home / 767,911.11-1,059,928.10-445,725.01

Finding the Fourth Proportional to 767,911.11, 1,059,928.10 and 445,725.01

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Solution

The fourth proportional to 767,911.11, 1,059,928.10 and 445,725.01 is: 615,222.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,911.11 : 1,059,928.10 = 445,725.01 : x
  2. Step 2: Convert to fraction form
    767,911.11/1,059,928.10 = 445,725.01/x
  3. Step 3: Cross multiply
    767,911.11x = 1,059,928.10 × 445,725.01
  4. Step 4: Simplify right side
    767,911.11x = 472,436,461,436.27
  5. Step 5: Solve for x
    x = 472,436,461,436.27/767,911.11
  6. Step 6: Final answer
    x = 615,222.85

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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.