Home / 570,904.37-787,931.96-329,139.72

Finding the Fourth Proportional to 570,904.37, 787,931.96 and 329,139.72

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Solution

The fourth proportional to 570,904.37, 787,931.96 and 329,139.72 is: 454,261.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,904.37 : 787,931.96 = 329,139.72 : x
  2. Step 2: Convert to fraction form
    570,904.37/787,931.96 = 329,139.72/x
  3. Step 3: Cross multiply
    570,904.37x = 787,931.96 × 329,139.72
  4. Step 4: Simplify right side
    570,904.37x = 259,339,703,047.75
  5. Step 5: Solve for x
    x = 259,339,703,047.75/570,904.37
  6. Step 6: Final answer
    x = 454,261.20

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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.