Home / 840,220.40-1,260,409.08-334,659.44

Finding the Fourth Proportional to 840,220.40, 1,260,409.08 and 334,659.44

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Solution

The fourth proportional to 840,220.40, 1,260,409.08 and 334,659.44 is: 502,020.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,220.40 : 1,260,409.08 = 334,659.44 : x
  2. Step 2: Convert to fraction form
    840,220.40/1,260,409.08 = 334,659.44/x
  3. Step 3: Cross multiply
    840,220.40x = 1,260,409.08 × 334,659.44
  4. Step 4: Simplify right side
    840,220.40x = 421,807,796,883.72
  5. Step 5: Solve for x
    x = 421,807,796,883.72/840,220.40
  6. Step 6: Final answer
    x = 502,020.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.