Home / 745,289.76-1,028,468.94-422,994

Finding the Fourth Proportional to 745,289.76, 1,028,468.94 and 422,994

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Solution

The fourth proportional to 745,289.76, 1,028,468.94 and 422,994 is: 583,714.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,289.76 : 1,028,468.94 = 422,994 : x
  2. Step 2: Convert to fraction form
    745,289.76/1,028,468.94 = 422,994/x
  3. Step 3: Cross multiply
    745,289.76x = 1,028,468.94 × 422,994
  4. Step 4: Simplify right side
    745,289.76x = 435,036,190,806.36
  5. Step 5: Solve for x
    x = 435,036,190,806.36/745,289.76
  6. Step 6: Final answer
    x = 583,714.17

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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.