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Finding the Fourth Proportional to 608,889.06, 840,680.37 and 379,538.10

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Solution

The fourth proportional to 608,889.06, 840,680.37 and 379,538.10 is: 524,020.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,889.06 : 840,680.37 = 379,538.10 : x
  2. Step 2: Convert to fraction form
    608,889.06/840,680.37 = 379,538.10/x
  3. Step 3: Cross multiply
    608,889.06x = 840,680.37 × 379,538.10
  4. Step 4: Simplify right side
    608,889.06x = 319,070,230,337.10
  5. Step 5: Solve for x
    x = 319,070,230,337.10/608,889.06
  6. Step 6: Final answer
    x = 524,020.30

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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.