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Finding the Fourth Proportional to 652,185.63, 978,278.99 and 525,230.55

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Solution

The fourth proportional to 652,185.63, 978,278.99 and 525,230.55 is: 787,846.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,185.63 : 978,278.99 = 525,230.55 : x
  2. Step 2: Convert to fraction form
    652,185.63/978,278.99 = 525,230.55/x
  3. Step 3: Cross multiply
    652,185.63x = 978,278.99 × 525,230.55
  4. Step 4: Simplify right side
    652,185.63x = 513,822,009,344.99
  5. Step 5: Solve for x
    x = 513,822,009,344.99/652,185.63
  6. Step 6: Final answer
    x = 787,846.26

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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.