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Finding the Fourth Proportional to 516,812.40, 774,901.08 and 200,901.06

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Solution

The fourth proportional to 516,812.40, 774,901.08 and 200,901.06 is: 301,228.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,812.40 : 774,901.08 = 200,901.06 : x
  2. Step 2: Convert to fraction form
    516,812.40/774,901.08 = 200,901.06/x
  3. Step 3: Cross multiply
    516,812.40x = 774,901.08 × 200,901.06
  4. Step 4: Simplify right side
    516,812.40x = 155,678,448,367.15
  5. Step 5: Solve for x
    x = 155,678,448,367.15/516,812.40
  6. Step 6: Final answer
    x = 301,228.16

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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.