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Finding the Fourth Proportional to 652,146.30, 978,219.45 and 628,526.70

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Solution

The fourth proportional to 652,146.30, 978,219.45 and 628,526.70 is: 942,790.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,146.30 : 978,219.45 = 628,526.70 : x
  2. Step 2: Convert to fraction form
    652,146.30/978,219.45 = 628,526.70/x
  3. Step 3: Cross multiply
    652,146.30x = 978,219.45 × 628,526.70
  4. Step 4: Simplify right side
    652,146.30x = 614,837,042,784.32
  5. Step 5: Solve for x
    x = 614,837,042,784.32/652,146.30
  6. Step 6: Final answer
    x = 942,790.05

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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.