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Finding the Fourth Proportional to 538,855.16, 808,282.80 and 299,116.28

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Solution

The fourth proportional to 538,855.16, 808,282.80 and 299,116.28 is: 448,674.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,855.16 : 808,282.80 = 299,116.28 : x
  2. Step 2: Convert to fraction form
    538,855.16/808,282.80 = 299,116.28/x
  3. Step 3: Cross multiply
    538,855.16x = 808,282.80 × 299,116.28
  4. Step 4: Simplify right side
    538,855.16x = 241,770,544,323.98
  5. Step 5: Solve for x
    x = 241,770,544,323.98/538,855.16
  6. Step 6: Final answer
    x = 448,674.45

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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.