Home / 1,246,276.70-1,865,478.45-978,587.90

Finding the Fourth Proportional to 1,246,276.70, 1,865,478.45 and 978,587.90

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Solution

The fourth proportional to 1,246,276.70, 1,865,478.45 and 978,587.90 is: 1,464,790.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,246,276.70 : 1,865,478.45 = 978,587.90 : x
  2. Step 2: Convert to fraction form
    1,246,276.70/1,865,478.45 = 978,587.90/x
  3. Step 3: Cross multiply
    1,246,276.70x = 1,865,478.45 × 978,587.90
  4. Step 4: Simplify right side
    1,246,276.70x = 1,825,534,638,880.76
  5. Step 5: Solve for x
    x = 1,825,534,638,880.76/1,246,276.70
  6. Step 6: Final answer
    x = 1,464,790.80

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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.