Home / 862,940.74-1,190,898.98-480,970.30

Finding the Fourth Proportional to 862,940.74, 1,190,898.98 and 480,970.30

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Solution

The fourth proportional to 862,940.74, 1,190,898.98 and 480,970.30 is: 663,761.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,940.74 : 1,190,898.98 = 480,970.30 : x
  2. Step 2: Convert to fraction form
    862,940.74/1,190,898.98 = 480,970.30/x
  3. Step 3: Cross multiply
    862,940.74x = 1,190,898.98 × 480,970.30
  4. Step 4: Simplify right side
    862,940.74x = 572,787,039,680.29
  5. Step 5: Solve for x
    x = 572,787,039,680.29/862,940.74
  6. Step 6: Final answer
    x = 663,761.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.