Home / 808,803.40-1,213,982.70-409,894.60

Finding the Fourth Proportional to 808,803.40, 1,213,982.70 and 409,894.60

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Solution

The fourth proportional to 808,803.40, 1,213,982.70 and 409,894.60 is: 615,235.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,803.40 : 1,213,982.70 = 409,894.60 : x
  2. Step 2: Convert to fraction form
    808,803.40/1,213,982.70 = 409,894.60/x
  3. Step 3: Cross multiply
    808,803.40x = 1,213,982.70 × 409,894.60
  4. Step 4: Simplify right side
    808,803.40x = 497,604,953,223.42
  5. Step 5: Solve for x
    x = 497,604,953,223.42/808,803.40
  6. Step 6: Final answer
    x = 615,235.98

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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.