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Finding the Fourth Proportional to 504,643.30, 696,399.02 and 275,202.40

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Solution

The fourth proportional to 504,643.30, 696,399.02 and 275,202.40 is: 379,774.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,643.30 : 696,399.02 = 275,202.40 : x
  2. Step 2: Convert to fraction form
    504,643.30/696,399.02 = 275,202.40/x
  3. Step 3: Cross multiply
    504,643.30x = 696,399.02 × 275,202.40
  4. Step 4: Simplify right side
    504,643.30x = 191,650,681,661.65
  5. Step 5: Solve for x
    x = 191,650,681,661.65/504,643.30
  6. Step 6: Final answer
    x = 379,774.55

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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.