Home / 859,678.62-1,186,465.59-520,149.66

Finding the Fourth Proportional to 859,678.62, 1,186,465.59 and 520,149.66

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Solution

The fourth proportional to 859,678.62, 1,186,465.59 and 520,149.66 is: 717,872.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,678.62 : 1,186,465.59 = 520,149.66 : x
  2. Step 2: Convert to fraction form
    859,678.62/1,186,465.59 = 520,149.66/x
  3. Step 3: Cross multiply
    859,678.62x = 1,186,465.59 × 520,149.66
  4. Step 4: Simplify right side
    859,678.62x = 617,139,673,240.20
  5. Step 5: Solve for x
    x = 617,139,673,240.20/859,678.62
  6. Step 6: Final answer
    x = 717,872.54

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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.