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Finding the Fourth Proportional to 561,942.40, 842,913.60 and 507,704.80

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Solution

The fourth proportional to 561,942.40, 842,913.60 and 507,704.80 is: 761,557.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,942.40 : 842,913.60 = 507,704.80 : x
  2. Step 2: Convert to fraction form
    561,942.40/842,913.60 = 507,704.80/x
  3. Step 3: Cross multiply
    561,942.40x = 842,913.60 × 507,704.80
  4. Step 4: Simplify right side
    561,942.40x = 427,951,280,705.28
  5. Step 5: Solve for x
    x = 427,951,280,705.28/561,942.40
  6. Step 6: Final answer
    x = 761,557.20

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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.