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Finding the Fourth Proportional to 608,885.56, 840,675.54 and 379,534.60

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Solution

The fourth proportional to 608,885.56, 840,675.54 and 379,534.60 is: 524,015.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,885.56 : 840,675.54 = 379,534.60 : x
  2. Step 2: Convert to fraction form
    608,885.56/840,675.54 = 379,534.60/x
  3. Step 3: Cross multiply
    608,885.56x = 840,675.54 × 379,534.60
  4. Step 4: Simplify right side
    608,885.56x = 319,065,454,803.68
  5. Step 5: Solve for x
    x = 319,065,454,803.68/608,885.56
  6. Step 6: Final answer
    x = 524,015.47

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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.