Home / 808,549.06-1,212,818.55-209,508.70

Finding the Fourth Proportional to 808,549.06, 1,212,818.55 and 209,508.70

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Solution

The fourth proportional to 808,549.06, 1,212,818.55 and 209,508.70 is: 314,261.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,549.06 : 1,212,818.55 = 209,508.70 : x
  2. Step 2: Convert to fraction form
    808,549.06/1,212,818.55 = 209,508.70/x
  3. Step 3: Cross multiply
    808,549.06x = 1,212,818.55 × 209,508.70
  4. Step 4: Simplify right side
    808,549.06x = 254,096,037,746.39
  5. Step 5: Solve for x
    x = 254,096,037,746.39/808,549.06
  6. Step 6: Final answer
    x = 314,261.74

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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.