Home / 385,474.06-531,444.54-316,310.18

Finding the Fourth Proportional to 385,474.06, 531,444.54 and 316,310.18

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Solution

The fourth proportional to 385,474.06, 531,444.54 and 316,310.18 is: 436,089.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,474.06 : 531,444.54 = 316,310.18 : x
  2. Step 2: Convert to fraction form
    385,474.06/531,444.54 = 316,310.18/x
  3. Step 3: Cross multiply
    385,474.06x = 531,444.54 × 316,310.18
  4. Step 4: Simplify right side
    385,474.06x = 168,101,319,625.73
  5. Step 5: Solve for x
    x = 168,101,319,625.73/385,474.06
  6. Step 6: Final answer
    x = 436,089.84

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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.