Home / 5,216,243.20-7,823,525.28-1,428,840.64

Finding the Fourth Proportional to 5,216,243.20, 7,823,525.28 and 1,428,840.64

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Solution

The fourth proportional to 5,216,243.20, 7,823,525.28 and 1,428,840.64 is: 2,143,031.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,216,243.20 : 7,823,525.28 = 1,428,840.64 : x
  2. Step 2: Convert to fraction form
    5,216,243.20/7,823,525.28 = 1,428,840.64/x
  3. Step 3: Cross multiply
    5,216,243.20x = 7,823,525.28 × 1,428,840.64
  4. Step 4: Simplify right side
    5,216,243.20x = 11,178,570,868,131.38
  5. Step 5: Solve for x
    x = 11,178,570,868,131.38/5,216,243.20
  6. Step 6: Final answer
    x = 2,143,031.00

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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.