Home / 528,278.24-792,541.77-420,614.81

Finding the Fourth Proportional to 528,278.24, 792,541.77 and 420,614.81

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Solution

The fourth proportional to 528,278.24, 792,541.77 and 420,614.81 is: 631,021.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,278.24 : 792,541.77 = 420,614.81 : x
  2. Step 2: Convert to fraction form
    528,278.24/792,541.77 = 420,614.81/x
  3. Step 3: Cross multiply
    528,278.24x = 792,541.77 × 420,614.81
  4. Step 4: Simplify right side
    528,278.24x = 333,354,806,005.61
  5. Step 5: Solve for x
    x = 333,354,806,005.61/528,278.24
  6. Step 6: Final answer
    x = 631,021.27

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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.