Home / 745,239.46-1,028,434.35-405,710.14

Finding the Fourth Proportional to 745,239.46, 1,028,434.35 and 405,710.14

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Solution

The fourth proportional to 745,239.46, 1,028,434.35 and 405,710.14 is: 559,882.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,239.46 : 1,028,434.35 = 405,710.14 : x
  2. Step 2: Convert to fraction form
    745,239.46/1,028,434.35 = 405,710.14/x
  3. Step 3: Cross multiply
    745,239.46x = 1,028,434.35 × 405,710.14
  4. Step 4: Simplify right side
    745,239.46x = 417,246,244,119.31
  5. Step 5: Solve for x
    x = 417,246,244,119.31/745,239.46
  6. Step 6: Final answer
    x = 559,882.11

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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.