Home / 816,809.40-1,222,794.90-607,375.80

Finding the Fourth Proportional to 816,809.40, 1,222,794.90 and 607,375.80

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Solution

The fourth proportional to 816,809.40, 1,222,794.90 and 607,375.80 is: 909,264.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,809.40 : 1,222,794.90 = 607,375.80 : x
  2. Step 2: Convert to fraction form
    816,809.40/1,222,794.90 = 607,375.80/x
  3. Step 3: Cross multiply
    816,809.40x = 1,222,794.90 × 607,375.80
  4. Step 4: Simplify right side
    816,809.40x = 742,696,030,623.42
  5. Step 5: Solve for x
    x = 742,696,030,623.42/816,809.40
  6. Step 6: Final answer
    x = 909,264.79

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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.