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Finding the Fourth Proportional to 608,019.60, 839,118.82 and 353,354.38

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Solution

The fourth proportional to 608,019.60, 839,118.82 and 353,354.38 is: 487,659.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,019.60 : 839,118.82 = 353,354.38 : x
  2. Step 2: Convert to fraction form
    608,019.60/839,118.82 = 353,354.38/x
  3. Step 3: Cross multiply
    608,019.60x = 839,118.82 × 353,354.38
  4. Step 4: Simplify right side
    608,019.60x = 296,506,310,387.43
  5. Step 5: Solve for x
    x = 296,506,310,387.43/608,019.60
  6. Step 6: Final answer
    x = 487,659.13

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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.