Home / 694,554.80-1,041,832.20-428,615.60

Finding the Fourth Proportional to 694,554.80, 1,041,832.20 and 428,615.60

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Solution

The fourth proportional to 694,554.80, 1,041,832.20 and 428,615.60 is: 642,923.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,554.80 : 1,041,832.20 = 428,615.60 : x
  2. Step 2: Convert to fraction form
    694,554.80/1,041,832.20 = 428,615.60/x
  3. Step 3: Cross multiply
    694,554.80x = 1,041,832.20 × 428,615.60
  4. Step 4: Simplify right side
    694,554.80x = 446,545,533,502.32
  5. Step 5: Solve for x
    x = 446,545,533,502.32/694,554.80
  6. Step 6: Final answer
    x = 642,923.40

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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.