Home / 390,488.83-585,733.26-203,864.83

Finding the Fourth Proportional to 390,488.83, 585,733.26 and 203,864.83

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Solution

The fourth proportional to 390,488.83, 585,733.26 and 203,864.83 is: 305,797.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,488.83 : 585,733.26 = 203,864.83 : x
  2. Step 2: Convert to fraction form
    390,488.83/585,733.26 = 203,864.83/x
  3. Step 3: Cross multiply
    390,488.83x = 585,733.26 × 203,864.83
  4. Step 4: Simplify right side
    390,488.83x = 119,410,411,475.25
  5. Step 5: Solve for x
    x = 119,410,411,475.25/390,488.83
  6. Step 6: Final answer
    x = 305,797.25

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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.