Home / 910,880.40-1,364,133.60-489,226.80

Finding the Fourth Proportional to 910,880.40, 1,364,133.60 and 489,226.80

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Solution

The fourth proportional to 910,880.40, 1,364,133.60 and 489,226.80 is: 732,665.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,880.40 : 1,364,133.60 = 489,226.80 : x
  2. Step 2: Convert to fraction form
    910,880.40/1,364,133.60 = 489,226.80/x
  3. Step 3: Cross multiply
    910,880.40x = 1,364,133.60 × 489,226.80
  4. Step 4: Simplify right side
    910,880.40x = 667,370,715,900.48
  5. Step 5: Solve for x
    x = 667,370,715,900.48/910,880.40
  6. Step 6: Final answer
    x = 732,665.58

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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.