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Finding the Fourth Proportional to 652,627.72, 900,628.74 and 380,883.32

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Solution

The fourth proportional to 652,627.72, 900,628.74 and 380,883.32 is: 525,620.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,627.72 : 900,628.74 = 380,883.32 : x
  2. Step 2: Convert to fraction form
    652,627.72/900,628.74 = 380,883.32/x
  3. Step 3: Cross multiply
    652,627.72x = 900,628.74 × 380,883.32
  4. Step 4: Simplify right side
    652,627.72x = 343,034,464,578.62
  5. Step 5: Solve for x
    x = 343,034,464,578.62/652,627.72
  6. Step 6: Final answer
    x = 525,620.43

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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.