Home / 1,309,573.92-1,963,966.08-860,276.64

Finding the Fourth Proportional to 1,309,573.92, 1,963,966.08 and 860,276.64

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Solution

The fourth proportional to 1,309,573.92, 1,963,966.08 and 860,276.64 is: 1,290,155.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,573.92 : 1,963,966.08 = 860,276.64 : x
  2. Step 2: Convert to fraction form
    1,309,573.92/1,963,966.08 = 860,276.64/x
  3. Step 3: Cross multiply
    1,309,573.92x = 1,963,966.08 × 860,276.64
  4. Step 4: Simplify right side
    1,309,573.92x = 1,689,554,140,376.37
  5. Step 5: Solve for x
    x = 1,689,554,140,376.37/1,309,573.92
  6. Step 6: Final answer
    x = 1,290,155.61

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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.