Home / 668,819.56-923,288.52-423,926.68

Finding the Fourth Proportional to 668,819.56, 923,288.52 and 423,926.68

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Solution

The fourth proportional to 668,819.56, 923,288.52 and 423,926.68 is: 585,220.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,819.56 : 923,288.52 = 423,926.68 : x
  2. Step 2: Convert to fraction form
    668,819.56/923,288.52 = 423,926.68/x
  3. Step 3: Cross multiply
    668,819.56x = 923,288.52 × 423,926.68
  4. Step 4: Simplify right side
    668,819.56x = 391,406,636,965.71
  5. Step 5: Solve for x
    x = 391,406,636,965.71/668,819.56
  6. Step 6: Final answer
    x = 585,220.08

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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.