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Finding the Fourth Proportional to 516,834.28, 775,259.10 and 340,470.76

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Solution

The fourth proportional to 516,834.28, 775,259.10 and 340,470.76 is: 510,711.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,834.28 : 775,259.10 = 340,470.76 : x
  2. Step 2: Convert to fraction form
    516,834.28/775,259.10 = 340,470.76/x
  3. Step 3: Cross multiply
    516,834.28x = 775,259.10 × 340,470.76
  4. Step 4: Simplify right side
    516,834.28x = 263,953,054,973.92
  5. Step 5: Solve for x
    x = 263,953,054,973.92/516,834.28
  6. Step 6: Final answer
    x = 510,711.20

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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.