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Finding the Fourth Proportional to 536,370.66, 740,255.76 and 321,503.58

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Solution

The fourth proportional to 536,370.66, 740,255.76 and 321,503.58 is: 443,713.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,370.66 : 740,255.76 = 321,503.58 : x
  2. Step 2: Convert to fraction form
    536,370.66/740,255.76 = 321,503.58/x
  3. Step 3: Cross multiply
    536,370.66x = 740,255.76 × 321,503.58
  4. Step 4: Simplify right side
    536,370.66x = 237,994,876,955.62
  5. Step 5: Solve for x
    x = 237,994,876,955.62/536,370.66
  6. Step 6: Final answer
    x = 443,713.45

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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.