Home / 872,377.61-1,308,775.55-422,572.77

Finding the Fourth Proportional to 872,377.61, 1,308,775.55 and 422,572.77

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Solution

The fourth proportional to 872,377.61, 1,308,775.55 and 422,572.77 is: 633,960.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,377.61 : 1,308,775.55 = 422,572.77 : x
  2. Step 2: Convert to fraction form
    872,377.61/1,308,775.55 = 422,572.77/x
  3. Step 3: Cross multiply
    872,377.61x = 1,308,775.55 × 422,572.77
  4. Step 4: Simplify right side
    872,377.61x = 553,052,907,358.91
  5. Step 5: Solve for x
    x = 553,052,907,358.91/872,377.61
  6. Step 6: Final answer
    x = 633,960.46

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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.