Home / 816,084.40-1,224,126.60-578,138.80

Finding the Fourth Proportional to 816,084.40, 1,224,126.60 and 578,138.80

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Solution

The fourth proportional to 816,084.40, 1,224,126.60 and 578,138.80 is: 867,208.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,084.40 : 1,224,126.60 = 578,138.80 : x
  2. Step 2: Convert to fraction form
    816,084.40/1,224,126.60 = 578,138.80/x
  3. Step 3: Cross multiply
    816,084.40x = 1,224,126.60 × 578,138.80
  4. Step 4: Simplify right side
    816,084.40x = 707,715,083,572.08
  5. Step 5: Solve for x
    x = 707,715,083,572.08/816,084.40
  6. Step 6: Final answer
    x = 867,208.20

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Similar ratio
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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.