Home / 857,282.76-1,285,023.81-288,466.38

Finding the Fourth Proportional to 857,282.76, 1,285,023.81 and 288,466.38

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Solution

The fourth proportional to 857,282.76, 1,285,023.81 and 288,466.38 is: 432,396.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,282.76 : 1,285,023.81 = 288,466.38 : x
  2. Step 2: Convert to fraction form
    857,282.76/1,285,023.81 = 288,466.38/x
  3. Step 3: Cross multiply
    857,282.76x = 1,285,023.81 × 288,466.38
  4. Step 4: Simplify right side
    857,282.76x = 370,686,166,684.51
  5. Step 5: Solve for x
    x = 370,686,166,684.51/857,282.76
  6. Step 6: Final answer
    x = 432,396.62

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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.