Home / 440,721.80-661,165.69-314,047.81

Finding the Fourth Proportional to 440,721.80, 661,165.69 and 314,047.81

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Solution

The fourth proportional to 440,721.80, 661,165.69 and 314,047.81 is: 471,130.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,721.80 : 661,165.69 = 314,047.81 : x
  2. Step 2: Convert to fraction form
    440,721.80/661,165.69 = 314,047.81/x
  3. Step 3: Cross multiply
    440,721.80x = 661,165.69 × 314,047.81
  4. Step 4: Simplify right side
    440,721.80x = 207,637,636,991.64
  5. Step 5: Solve for x
    x = 207,637,636,991.64/440,721.80
  6. Step 6: Final answer
    x = 471,130.85

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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.