Home / 763,011.62-1,053,005.25-423,479.88

Finding the Fourth Proportional to 763,011.62, 1,053,005.25 and 423,479.88

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Solution

The fourth proportional to 763,011.62, 1,053,005.25 and 423,479.88 is: 584,429.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,011.62 : 1,053,005.25 = 423,479.88 : x
  2. Step 2: Convert to fraction form
    763,011.62/1,053,005.25 = 423,479.88/x
  3. Step 3: Cross multiply
    763,011.62x = 1,053,005.25 × 423,479.88
  4. Step 4: Simplify right side
    763,011.62x = 445,926,536,909.37
  5. Step 5: Solve for x
    x = 445,926,536,909.37/763,011.62
  6. Step 6: Final answer
    x = 584,429.55

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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.