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Finding the Fourth Proportional to 608,815.98, 840,136.32 and 336,878.82

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Solution

The fourth proportional to 608,815.98, 840,136.32 and 336,878.82 is: 464,876.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,815.98 : 840,136.32 = 336,878.82 : x
  2. Step 2: Convert to fraction form
    608,815.98/840,136.32 = 336,878.82/x
  3. Step 3: Cross multiply
    608,815.98x = 840,136.32 × 336,878.82
  4. Step 4: Simplify right side
    608,815.98x = 283,024,132,120.74
  5. Step 5: Solve for x
    x = 283,024,132,120.74/608,815.98
  6. Step 6: Final answer
    x = 464,876.32

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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.