Home / 734,065.39-1,100,742.10-430,558.72

Finding the Fourth Proportional to 734,065.39, 1,100,742.10 and 430,558.72

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Solution

The fourth proportional to 734,065.39, 1,100,742.10 and 430,558.72 is: 645,629.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    734,065.39 : 1,100,742.10 = 430,558.72 : x
  2. Step 2: Convert to fraction form
    734,065.39/1,100,742.10 = 430,558.72/x
  3. Step 3: Cross multiply
    734,065.39x = 1,100,742.10 × 430,558.72
  4. Step 4: Simplify right side
    734,065.39x = 473,934,112,377.97
  5. Step 5: Solve for x
    x = 473,934,112,377.97/734,065.39
  6. Step 6: Final answer
    x = 645,629.28

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1.5x scale

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.