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Finding the Fourth Proportional to 775,557, 1,070,422.08 and 503,242.56

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Solution

The fourth proportional to 775,557, 1,070,422.08 and 503,242.56 is: 694,574.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,557 : 1,070,422.08 = 503,242.56 : x
  2. Step 2: Convert to fraction form
    775,557/1,070,422.08 = 503,242.56/x
  3. Step 3: Cross multiply
    775,557x = 1,070,422.08 × 503,242.56
  4. Step 4: Simplify right side
    775,557x = 538,681,947,819.73
  5. Step 5: Solve for x
    x = 538,681,947,819.73/775,557
  6. Step 6: Final answer
    x = 694,574.28

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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.