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Finding the Fourth Proportional to 516,628.80, 773,560.80 and 328,622.40

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Solution

The fourth proportional to 516,628.80, 773,560.80 and 328,622.40 is: 492,054.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,628.80 : 773,560.80 = 328,622.40 : x
  2. Step 2: Convert to fraction form
    516,628.80/773,560.80 = 328,622.40/x
  3. Step 3: Cross multiply
    516,628.80x = 773,560.80 × 328,622.40
  4. Step 4: Simplify right side
    516,628.80x = 254,209,406,641.92
  5. Step 5: Solve for x
    x = 254,209,406,641.92/516,628.80
  6. Step 6: Final answer
    x = 492,054.27

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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.