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Finding the Fourth Proportional to 652,479.30, 978,718.95 and 453,413.70

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Solution

The fourth proportional to 652,479.30, 978,718.95 and 453,413.70 is: 680,120.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,479.30 : 978,718.95 = 453,413.70 : x
  2. Step 2: Convert to fraction form
    652,479.30/978,718.95 = 453,413.70/x
  3. Step 3: Cross multiply
    652,479.30x = 978,718.95 × 453,413.70
  4. Step 4: Simplify right side
    652,479.30x = 443,764,580,379.62
  5. Step 5: Solve for x
    x = 443,764,580,379.62/652,479.30
  6. Step 6: Final answer
    x = 680,120.55

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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.