Home / 724,783.40-1,000,247.36-402,493.44

Finding the Fourth Proportional to 724,783.40, 1,000,247.36 and 402,493.44

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Solution

The fourth proportional to 724,783.40, 1,000,247.36 and 402,493.44 is: 555,466.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,783.40 : 1,000,247.36 = 402,493.44 : x
  2. Step 2: Convert to fraction form
    724,783.40/1,000,247.36 = 402,493.44/x
  3. Step 3: Cross multiply
    724,783.40x = 1,000,247.36 × 402,493.44
  4. Step 4: Simplify right side
    724,783.40x = 402,592,998,764.85
  5. Step 5: Solve for x
    x = 402,592,998,764.85/724,783.40
  6. Step 6: Final answer
    x = 555,466.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.