Home / 808,823.20-1,213,234.80-509,641.60

Finding the Fourth Proportional to 808,823.20, 1,213,234.80 and 509,641.60

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Solution

The fourth proportional to 808,823.20, 1,213,234.80 and 509,641.60 is: 764,462.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,823.20 : 1,213,234.80 = 509,641.60 : x
  2. Step 2: Convert to fraction form
    808,823.20/1,213,234.80 = 509,641.60/x
  3. Step 3: Cross multiply
    808,823.20x = 1,213,234.80 × 509,641.60
  4. Step 4: Simplify right side
    808,823.20x = 618,314,924,647.68
  5. Step 5: Solve for x
    x = 618,314,924,647.68/808,823.20
  6. Step 6: Final answer
    x = 764,462.40

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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.