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Finding the Fourth Proportional to 384,301.20, 575,139.60 and 352,808.40

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Solution

The fourth proportional to 384,301.20, 575,139.60 and 352,808.40 is: 528,007.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,301.20 : 575,139.60 = 352,808.40 : x
  2. Step 2: Convert to fraction form
    384,301.20/575,139.60 = 352,808.40/x
  3. Step 3: Cross multiply
    384,301.20x = 575,139.60 × 352,808.40
  4. Step 4: Simplify right side
    384,301.20x = 202,914,082,052.64
  5. Step 5: Solve for x
    x = 202,914,082,052.64/384,301.20
  6. Step 6: Final answer
    x = 528,007.93

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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.