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Finding the Fourth Proportional to 561,942.20, 842,913.30 and 496,988.30

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Solution

The fourth proportional to 561,942.20, 842,913.30 and 496,988.30 is: 745,482.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,942.20 : 842,913.30 = 496,988.30 : x
  2. Step 2: Convert to fraction form
    561,942.20/842,913.30 = 496,988.30/x
  3. Step 3: Cross multiply
    561,942.20x = 842,913.30 × 496,988.30
  4. Step 4: Simplify right side
    561,942.20x = 418,918,048,014.39
  5. Step 5: Solve for x
    x = 418,918,048,014.39/561,942.20
  6. Step 6: Final answer
    x = 745,482.45

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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.