Home / 1,284,424.40-1,926,053.40-485,440.40

Finding the Fourth Proportional to 1,284,424.40, 1,926,053.40 and 485,440.40

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Solution

The fourth proportional to 1,284,424.40, 1,926,053.40 and 485,440.40 is: 727,940.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,424.40 : 1,926,053.40 = 485,440.40 : x
  2. Step 2: Convert to fraction form
    1,284,424.40/1,926,053.40 = 485,440.40/x
  3. Step 3: Cross multiply
    1,284,424.40x = 1,926,053.40 × 485,440.40
  4. Step 4: Simplify right side
    1,284,424.40x = 934,984,132,917.36
  5. Step 5: Solve for x
    x = 934,984,132,917.36/1,284,424.40
  6. Step 6: Final answer
    x = 727,940.18

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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.