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Finding the Fourth Proportional to 652,359.45, 978,539.18 and 652,359.45

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Solution

The fourth proportional to 652,359.45, 978,539.18 and 652,359.45 is: 978,539.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,359.45 : 978,539.18 = 652,359.45 : x
  2. Step 2: Convert to fraction form
    652,359.45/978,539.18 = 652,359.45/x
  3. Step 3: Cross multiply
    652,359.45x = 978,539.18 × 652,359.45
  4. Step 4: Simplify right side
    652,359.45x = 638,359,281,268.25
  5. Step 5: Solve for x
    x = 638,359,281,268.25/652,359.45
  6. Step 6: Final answer
    x = 978,539.18

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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.