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Finding the Fourth Proportional to 608,870.30, 840,220.32 and 336,949.65

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Solution

The fourth proportional to 608,870.30, 840,220.32 and 336,949.65 is: 464,979.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,870.30 : 840,220.32 = 336,949.65 : x
  2. Step 2: Convert to fraction form
    608,870.30/840,220.32 = 336,949.65/x
  3. Step 3: Cross multiply
    608,870.30x = 840,220.32 × 336,949.65
  4. Step 4: Simplify right side
    608,870.30x = 283,111,942,746.89
  5. Step 5: Solve for x
    x = 283,111,942,746.89/608,870.30
  6. Step 6: Final answer
    x = 464,979.07

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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.