Home / 1,188,428.28-1,782,801.18-346,967.88

Finding the Fourth Proportional to 1,188,428.28, 1,782,801.18 and 346,967.88

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Solution

The fourth proportional to 1,188,428.28, 1,782,801.18 and 346,967.88 is: 520,498.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,428.28 : 1,782,801.18 = 346,967.88 : x
  2. Step 2: Convert to fraction form
    1,188,428.28/1,782,801.18 = 346,967.88/x
  3. Step 3: Cross multiply
    1,188,428.28x = 1,782,801.18 × 346,967.88
  4. Step 4: Simplify right side
    1,188,428.28x = 618,574,745,886.10
  5. Step 5: Solve for x
    x = 618,574,745,886.10/1,188,428.28
  6. Step 6: Final answer
    x = 520,498.17

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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.