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Finding the Fourth Proportional to 535,088.84, 738,445.88 and 320,187.72

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Solution

The fourth proportional to 535,088.84, 738,445.88 and 320,187.72 is: 441,872.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,088.84 : 738,445.88 = 320,187.72 : x
  2. Step 2: Convert to fraction form
    535,088.84/738,445.88 = 320,187.72/x
  3. Step 3: Cross multiply
    535,088.84x = 738,445.88 × 320,187.72
  4. Step 4: Simplify right side
    535,088.84x = 236,441,302,660.59
  5. Step 5: Solve for x
    x = 236,441,302,660.59/535,088.84
  6. Step 6: Final answer
    x = 441,872.98

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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.