Home / 910,579.40-1,366,251.83-489,363.20

Finding the Fourth Proportional to 910,579.40, 1,366,251.83 and 489,363.20

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Solution

The fourth proportional to 910,579.40, 1,366,251.83 and 489,363.20 is: 734,250.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,579.40 : 1,366,251.83 = 489,363.20 : x
  2. Step 2: Convert to fraction form
    910,579.40/1,366,251.83 = 489,363.20/x
  3. Step 3: Cross multiply
    910,579.40x = 1,366,251.83 × 489,363.20
  4. Step 4: Simplify right side
    910,579.40x = 668,593,365,087.84
  5. Step 5: Solve for x
    x = 668,593,365,087.84/910,579.40
  6. Step 6: Final answer
    x = 734,250.48

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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.