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Finding the Fourth Proportional to 535,205.80, 802,808.70 and 336,140.20

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Solution

The fourth proportional to 535,205.80, 802,808.70 and 336,140.20 is: 504,210.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,205.80 : 802,808.70 = 336,140.20 : x
  2. Step 2: Convert to fraction form
    535,205.80/802,808.70 = 336,140.20/x
  3. Step 3: Cross multiply
    535,205.80x = 802,808.70 × 336,140.20
  4. Step 4: Simplify right side
    535,205.80x = 269,856,276,979.74
  5. Step 5: Solve for x
    x = 269,856,276,979.74/535,205.80
  6. Step 6: Final answer
    x = 504,210.30

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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.