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Finding the Fourth Proportional to 474,097.60, 654,782.80 and 438,225.36

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Solution

The fourth proportional to 474,097.60, 654,782.80 and 438,225.36 is: 605,239.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,097.60 : 654,782.80 = 438,225.36 : x
  2. Step 2: Convert to fraction form
    474,097.60/654,782.80 = 438,225.36/x
  3. Step 3: Cross multiply
    474,097.60x = 654,782.80 × 438,225.36
  4. Step 4: Simplify right side
    474,097.60x = 286,942,428,251.81
  5. Step 5: Solve for x
    x = 286,942,428,251.81/474,097.60
  6. Step 6: Final answer
    x = 605,239.15

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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.