Home / 501,433.12-691,921.44-297,410.56

Finding the Fourth Proportional to 501,433.12, 691,921.44 and 297,410.56

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Solution

The fourth proportional to 501,433.12, 691,921.44 and 297,410.56 is: 410,393.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,433.12 : 691,921.44 = 297,410.56 : x
  2. Step 2: Convert to fraction form
    501,433.12/691,921.44 = 297,410.56/x
  3. Step 3: Cross multiply
    501,433.12x = 691,921.44 × 297,410.56
  4. Step 4: Simplify right side
    501,433.12x = 205,784,742,946.41
  5. Step 5: Solve for x
    x = 205,784,742,946.41/501,433.12
  6. Step 6: Final answer
    x = 410,393.20

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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.