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Finding the Fourth Proportional to 574,100.20, 792,256.74 and 319,445.32

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Solution

The fourth proportional to 574,100.20, 792,256.74 and 319,445.32 is: 440,833.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,100.20 : 792,256.74 = 319,445.32 : x
  2. Step 2: Convert to fraction form
    574,100.20/792,256.74 = 319,445.32/x
  3. Step 3: Cross multiply
    574,100.20x = 792,256.74 × 319,445.32
  4. Step 4: Simplify right side
    574,100.20x = 253,082,707,831.46
  5. Step 5: Solve for x
    x = 253,082,707,831.46/574,100.20
  6. Step 6: Final answer
    x = 440,833.69

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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.