Home / 822,041.80-1,232,141.10-422,528.20

Finding the Fourth Proportional to 822,041.80, 1,232,141.10 and 422,528.20

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Solution

The fourth proportional to 822,041.80, 1,232,141.10 and 422,528.20 is: 633,318.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,041.80 : 1,232,141.10 = 422,528.20 : x
  2. Step 2: Convert to fraction form
    822,041.80/1,232,141.10 = 422,528.20/x
  3. Step 3: Cross multiply
    822,041.80x = 1,232,141.10 × 422,528.20
  4. Step 4: Simplify right side
    822,041.80x = 520,614,361,129.02
  5. Step 5: Solve for x
    x = 520,614,361,129.02/822,041.80
  6. Step 6: Final answer
    x = 633,318.60

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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.