Home / 511,225.20-766,837.80-322,268.40

Finding the Fourth Proportional to 511,225.20, 766,837.80 and 322,268.40

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Solution

The fourth proportional to 511,225.20, 766,837.80 and 322,268.40 is: 483,402.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,225.20 : 766,837.80 = 322,268.40 : x
  2. Step 2: Convert to fraction form
    511,225.20/766,837.80 = 322,268.40/x
  3. Step 3: Cross multiply
    511,225.20x = 766,837.80 × 322,268.40
  4. Step 4: Simplify right side
    511,225.20x = 247,127,590,865.52
  5. Step 5: Solve for x
    x = 247,127,590,865.52/511,225.20
  6. Step 6: Final answer
    x = 483,402.60

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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.