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Finding the Fourth Proportional to 652,626.72, 900,627.36 and 380,882.32

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Solution

The fourth proportional to 652,626.72, 900,627.36 and 380,882.32 is: 525,619.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,626.72 : 900,627.36 = 380,882.32 : x
  2. Step 2: Convert to fraction form
    652,626.72/900,627.36 = 380,882.32/x
  3. Step 3: Cross multiply
    652,626.72x = 900,627.36 × 380,882.32
  4. Step 4: Simplify right side
    652,626.72x = 343,033,038,332.28
  5. Step 5: Solve for x
    x = 343,033,038,332.28/652,626.72
  6. Step 6: Final answer
    x = 525,619.05

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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.