Home / 1,228,700.72-1,695,614.85-684,871

Finding the Fourth Proportional to 1,228,700.72, 1,695,614.85 and 684,871

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Solution

The fourth proportional to 1,228,700.72, 1,695,614.85 and 684,871 is: 945,126.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,700.72 : 1,695,614.85 = 684,871 : x
  2. Step 2: Convert to fraction form
    1,228,700.72/1,695,614.85 = 684,871/x
  3. Step 3: Cross multiply
    1,228,700.72x = 1,695,614.85 × 684,871
  4. Step 4: Simplify right side
    1,228,700.72x = 1,161,277,437,934.35
  5. Step 5: Solve for x
    x = 1,161,277,437,934.35/1,228,700.72
  6. Step 6: Final answer
    x = 945,126.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.