Home / 857,866.14-1,287,228.33-384,889.50

Finding the Fourth Proportional to 857,866.14, 1,287,228.33 and 384,889.50

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Solution

The fourth proportional to 857,866.14, 1,287,228.33 and 384,889.50 is: 577,526.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,866.14 : 1,287,228.33 = 384,889.50 : x
  2. Step 2: Convert to fraction form
    857,866.14/1,287,228.33 = 384,889.50/x
  3. Step 3: Cross multiply
    857,866.14x = 1,287,228.33 × 384,889.50
  4. Step 4: Simplify right side
    857,866.14x = 495,440,668,319.54
  5. Step 5: Solve for x
    x = 495,440,668,319.54/857,866.14
  6. Step 6: Final answer
    x = 577,526.78

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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.