Home / 901,715.28-1,244,351.88-499,298.64

Finding the Fourth Proportional to 901,715.28, 1,244,351.88 and 499,298.64

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Solution

The fourth proportional to 901,715.28, 1,244,351.88 and 499,298.64 is: 689,023.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,715.28 : 1,244,351.88 = 499,298.64 : x
  2. Step 2: Convert to fraction form
    901,715.28/1,244,351.88 = 499,298.64/x
  3. Step 3: Cross multiply
    901,715.28x = 1,244,351.88 × 499,298.64
  4. Step 4: Simplify right side
    901,715.28x = 621,303,201,365.44
  5. Step 5: Solve for x
    x = 621,303,201,365.44/901,715.28
  6. Step 6: Final answer
    x = 689,023.70

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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.