Home / 821,931.71-1,232,683.72-348,373.31

Finding the Fourth Proportional to 821,931.71, 1,232,683.72 and 348,373.31

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Solution

The fourth proportional to 821,931.71, 1,232,683.72 and 348,373.31 is: 522,469.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,931.71 : 1,232,683.72 = 348,373.31 : x
  2. Step 2: Convert to fraction form
    821,931.71/1,232,683.72 = 348,373.31/x
  3. Step 3: Cross multiply
    821,931.71x = 1,232,683.72 × 348,373.31
  4. Step 4: Simplify right side
    821,931.71x = 429,434,107,719.51
  5. Step 5: Solve for x
    x = 429,434,107,719.51/821,931.71
  6. Step 6: Final answer
    x = 522,469.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.