Home / 778,516.56-1,074,427.97-472,522.46

Finding the Fourth Proportional to 778,516.56, 1,074,427.97 and 472,522.46

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Solution

The fourth proportional to 778,516.56, 1,074,427.97 and 472,522.46 is: 652,126.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,516.56 : 1,074,427.97 = 472,522.46 : x
  2. Step 2: Convert to fraction form
    778,516.56/1,074,427.97 = 472,522.46/x
  3. Step 3: Cross multiply
    778,516.56x = 1,074,427.97 × 472,522.46
  4. Step 4: Simplify right side
    778,516.56x = 507,691,339,742.45
  5. Step 5: Solve for x
    x = 507,691,339,742.45/778,516.56
  6. Step 6: Final answer
    x = 652,126.58

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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.