Home / 1,036,740.80-1,555,111.20-438,377.60

Finding the Fourth Proportional to 1,036,740.80, 1,555,111.20 and 438,377.60

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Solution

The fourth proportional to 1,036,740.80, 1,555,111.20 and 438,377.60 is: 657,566.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036,740.80 : 1,555,111.20 = 438,377.60 : x
  2. Step 2: Convert to fraction form
    1,036,740.80/1,555,111.20 = 438,377.60/x
  3. Step 3: Cross multiply
    1,036,740.80x = 1,555,111.20 × 438,377.60
  4. Step 4: Simplify right side
    1,036,740.80x = 681,725,915,589.12
  5. Step 5: Solve for x
    x = 681,725,915,589.12/1,036,740.80
  6. Step 6: Final answer
    x = 657,566.40

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Double scale
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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.