Home / 1,615,702.71-2,421,493.41-857,907.21

Finding the Fourth Proportional to 1,615,702.71, 2,421,493.41 and 857,907.21

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Solution

The fourth proportional to 1,615,702.71, 2,421,493.41 and 857,907.21 is: 1,285,766.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615,702.71 : 2,421,493.41 = 857,907.21 : x
  2. Step 2: Convert to fraction form
    1,615,702.71/2,421,493.41 = 857,907.21/x
  3. Step 3: Cross multiply
    1,615,702.71x = 2,421,493.41 × 857,907.21
  4. Step 4: Simplify right side
    1,615,702.71x = 2,077,416,655,406.49
  5. Step 5: Solve for x
    x = 2,077,416,655,406.49/1,615,702.71
  6. Step 6: Final answer
    x = 1,285,766.65

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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.