Home / 1,378,728.54-2,068,148.43-480,261.15

Finding the Fourth Proportional to 1,378,728.54, 2,068,148.43 and 480,261.15

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Solution

The fourth proportional to 1,378,728.54, 2,068,148.43 and 480,261.15 is: 720,411.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,728.54 : 2,068,148.43 = 480,261.15 : x
  2. Step 2: Convert to fraction form
    1,378,728.54/2,068,148.43 = 480,261.15/x
  3. Step 3: Cross multiply
    1,378,728.54x = 2,068,148.43 × 480,261.15
  4. Step 4: Simplify right side
    1,378,728.54x = 993,251,343,362.50
  5. Step 5: Solve for x
    x = 993,251,343,362.50/1,378,728.54
  6. Step 6: Final answer
    x = 720,411.10

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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.