Home / 685,134.15-1,026,323.42-385,165.23

Finding the Fourth Proportional to 685,134.15, 1,026,323.42 and 385,165.23

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Solution

The fourth proportional to 685,134.15, 1,026,323.42 and 385,165.23 is: 576,973.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,134.15 : 1,026,323.42 = 385,165.23 : x
  2. Step 2: Convert to fraction form
    685,134.15/1,026,323.42 = 385,165.23/x
  3. Step 3: Cross multiply
    685,134.15x = 1,026,323.42 × 385,165.23
  4. Step 4: Simplify right side
    685,134.15x = 395,304,094,192.86
  5. Step 5: Solve for x
    x = 395,304,094,192.86/685,134.15
  6. Step 6: Final answer
    x = 576,973.27

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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.