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Finding the Fourth Proportional to 723,225.48, 997,958.88 and 400,932.60

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Solution

The fourth proportional to 723,225.48, 997,958.88 and 400,932.60 is: 553,235.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,225.48 : 997,958.88 = 400,932.60 : x
  2. Step 2: Convert to fraction form
    723,225.48/997,958.88 = 400,932.60/x
  3. Step 3: Cross multiply
    723,225.48x = 997,958.88 × 400,932.60
  4. Step 4: Simplify right side
    723,225.48x = 400,114,248,451.49
  5. Step 5: Solve for x
    x = 400,114,248,451.49/723,225.48
  6. Step 6: Final answer
    x = 553,235.83

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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.