Home / 808,422.60-1,211,321.70-508,366.20

Finding the Fourth Proportional to 808,422.60, 1,211,321.70 and 508,366.20

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Solution

The fourth proportional to 808,422.60, 1,211,321.70 and 508,366.20 is: 761,724.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,422.60 : 1,211,321.70 = 508,366.20 : x
  2. Step 2: Convert to fraction form
    808,422.60/1,211,321.70 = 508,366.20/x
  3. Step 3: Cross multiply
    808,422.60x = 1,211,321.70 × 508,366.20
  4. Step 4: Simplify right side
    808,422.60x = 615,795,009,606.54
  5. Step 5: Solve for x
    x = 615,795,009,606.54/808,422.60
  6. Step 6: Final answer
    x = 761,724.14

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1.5x scale

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.