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Finding the Fourth Proportional to 608,774.22, 840,240.84 and 354,158.82

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Solution

The fourth proportional to 608,774.22, 840,240.84 and 354,158.82 is: 488,816.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,774.22 : 840,240.84 = 354,158.82 : x
  2. Step 2: Convert to fraction form
    608,774.22/840,240.84 = 354,158.82/x
  3. Step 3: Cross multiply
    608,774.22x = 840,240.84 × 354,158.82
  4. Step 4: Simplify right side
    608,774.22x = 297,578,704,410.21
  5. Step 5: Solve for x
    x = 297,578,704,410.21/608,774.22
  6. Step 6: Final answer
    x = 488,816.21

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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.