Home / 745,267.86-1,028,488.14-405,754.74

Finding the Fourth Proportional to 745,267.86, 1,028,488.14 and 405,754.74

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Solution

The fourth proportional to 745,267.86, 1,028,488.14 and 405,754.74 is: 559,951.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,267.86 : 1,028,488.14 = 405,754.74 : x
  2. Step 2: Convert to fraction form
    745,267.86/1,028,488.14 = 405,754.74/x
  3. Step 3: Cross multiply
    745,267.86x = 1,028,488.14 × 405,754.74
  4. Step 4: Simplify right side
    745,267.86x = 417,313,937,838.78
  5. Step 5: Solve for x
    x = 417,313,937,838.78/745,267.86
  6. Step 6: Final answer
    x = 559,951.61

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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.