Home / 1,428,860.16-2,143,303.20-469,301.76

Finding the Fourth Proportional to 1,428,860.16, 2,143,303.20 and 469,301.76

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Solution

The fourth proportional to 1,428,860.16, 2,143,303.20 and 469,301.76 is: 703,956.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,860.16 : 2,143,303.20 = 469,301.76 : x
  2. Step 2: Convert to fraction form
    1,428,860.16/2,143,303.20 = 469,301.76/x
  3. Step 3: Cross multiply
    1,428,860.16x = 2,143,303.20 × 469,301.76
  4. Step 4: Simplify right side
    1,428,860.16x = 1,005,855,963,973.63
  5. Step 5: Solve for x
    x = 1,005,855,963,973.63/1,428,860.16
  6. Step 6: Final answer
    x = 703,956.90

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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.