Home / 745,486.94-1,028,744.98-455,583.51

Finding the Fourth Proportional to 745,486.94, 1,028,744.98 and 455,583.51

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Solution

The fourth proportional to 745,486.94, 1,028,744.98 and 455,583.51 is: 628,688.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,486.94 : 1,028,744.98 = 455,583.51 : x
  2. Step 2: Convert to fraction form
    745,486.94/1,028,744.98 = 455,583.51/x
  3. Step 3: Cross multiply
    745,486.94x = 1,028,744.98 × 455,583.51
  4. Step 4: Simplify right side
    745,486.94x = 468,679,251,919.00
  5. Step 5: Solve for x
    x = 468,679,251,919.00/745,486.94
  6. Step 6: Final answer
    x = 628,688.75

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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.