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Finding the Fourth Proportional to 652,368.30, 978,801.54 and 253,289.28

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Solution

The fourth proportional to 652,368.30, 978,801.54 and 253,289.28 is: 380,030.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,368.30 : 978,801.54 = 253,289.28 : x
  2. Step 2: Convert to fraction form
    652,368.30/978,801.54 = 253,289.28/x
  3. Step 3: Cross multiply
    652,368.30x = 978,801.54 × 253,289.28
  4. Step 4: Simplify right side
    652,368.30x = 247,919,937,329.49
  5. Step 5: Solve for x
    x = 247,919,937,329.49/652,368.30
  6. Step 6: Final answer
    x = 380,030.63

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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.