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Finding the Fourth Proportional to 652,111.30, 978,166.95 and 372,175.30

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Solution

The fourth proportional to 652,111.30, 978,166.95 and 372,175.30 is: 558,262.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,111.30 : 978,166.95 = 372,175.30 : x
  2. Step 2: Convert to fraction form
    652,111.30/978,166.95 = 372,175.30/x
  3. Step 3: Cross multiply
    652,111.30x = 978,166.95 × 372,175.30
  4. Step 4: Simplify right side
    652,111.30x = 364,049,578,066.34
  5. Step 5: Solve for x
    x = 364,049,578,066.34/652,111.30
  6. Step 6: Final answer
    x = 558,262.95

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Similar ratio
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1.5x scale

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.