Home / 528,282.81-792,395.06-386,273.61

Finding the Fourth Proportional to 528,282.81, 792,395.06 and 386,273.61

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Solution

The fourth proportional to 528,282.81, 792,395.06 and 386,273.61 is: 579,389.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,282.81 : 792,395.06 = 386,273.61 : x
  2. Step 2: Convert to fraction form
    528,282.81/792,395.06 = 386,273.61/x
  3. Step 3: Cross multiply
    528,282.81x = 792,395.06 × 386,273.61
  4. Step 4: Simplify right side
    528,282.81x = 306,081,298,441.00
  5. Step 5: Solve for x
    x = 306,081,298,441.00/528,282.81
  6. Step 6: Final answer
    x = 579,389.09

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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.