Home / 862,018.20-1,189,596.78-480,054.60

Finding the Fourth Proportional to 862,018.20, 1,189,596.78 and 480,054.60

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Solution

The fourth proportional to 862,018.20, 1,189,596.78 and 480,054.60 is: 662,481.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,018.20 : 1,189,596.78 = 480,054.60 : x
  2. Step 2: Convert to fraction form
    862,018.20/1,189,596.78 = 480,054.60/x
  3. Step 3: Cross multiply
    862,018.20x = 1,189,596.78 × 480,054.60
  4. Step 4: Simplify right side
    862,018.20x = 571,071,406,384.19
  5. Step 5: Solve for x
    x = 571,071,406,384.19/862,018.20
  6. Step 6: Final answer
    x = 662,481.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.