Home / 694,562.80-1,041,844.20-428,623.60

Finding the Fourth Proportional to 694,562.80, 1,041,844.20 and 428,623.60

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Solution

The fourth proportional to 694,562.80, 1,041,844.20 and 428,623.60 is: 642,935.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,562.80 : 1,041,844.20 = 428,623.60 : x
  2. Step 2: Convert to fraction form
    694,562.80/1,041,844.20 = 428,623.60/x
  3. Step 3: Cross multiply
    694,562.80x = 1,041,844.20 × 428,623.60
  4. Step 4: Simplify right side
    694,562.80x = 446,559,011,643.12
  5. Step 5: Solve for x
    x = 446,559,011,643.12/694,562.80
  6. Step 6: Final answer
    x = 642,935.40

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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.