Home / 1,228,795.20-1,843,192.80-342,331.20

Finding the Fourth Proportional to 1,228,795.20, 1,843,192.80 and 342,331.20

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Solution

The fourth proportional to 1,228,795.20, 1,843,192.80 and 342,331.20 is: 513,496.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,795.20 : 1,843,192.80 = 342,331.20 : x
  2. Step 2: Convert to fraction form
    1,228,795.20/1,843,192.80 = 342,331.20/x
  3. Step 3: Cross multiply
    1,228,795.20x = 1,843,192.80 × 342,331.20
  4. Step 4: Simplify right side
    1,228,795.20x = 630,982,403,055.36
  5. Step 5: Solve for x
    x = 630,982,403,055.36/1,228,795.20
  6. Step 6: Final answer
    x = 513,496.80

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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.