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Finding the Fourth Proportional to 608,871.05, 840,221.36 and 336,950.40

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Solution

The fourth proportional to 608,871.05, 840,221.36 and 336,950.40 is: 464,980.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,871.05 : 840,221.36 = 336,950.40 : x
  2. Step 2: Convert to fraction form
    608,871.05/840,221.36 = 336,950.40/x
  3. Step 3: Cross multiply
    608,871.05x = 840,221.36 × 336,950.40
  4. Step 4: Simplify right side
    608,871.05x = 283,112,921,655.79
  5. Step 5: Solve for x
    x = 283,112,921,655.79/608,871.05
  6. Step 6: Final answer
    x = 464,980.10

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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.