Home / 480,712.86-661,865.27-423,313.22

Finding the Fourth Proportional to 480,712.86, 661,865.27 and 423,313.22

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Solution

The fourth proportional to 480,712.86, 661,865.27 and 423,313.22 is: 582,835.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,712.86 : 661,865.27 = 423,313.22 : x
  2. Step 2: Convert to fraction form
    480,712.86/661,865.27 = 423,313.22/x
  3. Step 3: Cross multiply
    480,712.86x = 661,865.27 × 423,313.22
  4. Step 4: Simplify right side
    480,712.86x = 280,176,318,187.97
  5. Step 5: Solve for x
    x = 280,176,318,187.97/480,712.86
  6. Step 6: Final answer
    x = 582,835.08

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1.5x scale

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.