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Finding the Fourth Proportional to 575,152.60, 793,711.38 and 320,498.20

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Solution

The fourth proportional to 575,152.60, 793,711.38 and 320,498.20 is: 442,287.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,152.60 : 793,711.38 = 320,498.20 : x
  2. Step 2: Convert to fraction form
    575,152.60/793,711.38 = 320,498.20/x
  3. Step 3: Cross multiply
    575,152.60x = 793,711.38 × 320,498.20
  4. Step 4: Simplify right side
    575,152.60x = 254,383,068,609.52
  5. Step 5: Solve for x
    x = 254,383,068,609.52/575,152.60
  6. Step 6: Final answer
    x = 442,287.96

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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.