Home / 553,743.20-829,958.70-497,318.60

Finding the Fourth Proportional to 553,743.20, 829,958.70 and 497,318.60

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Solution

The fourth proportional to 553,743.20, 829,958.70 and 497,318.60 is: 745,388.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,743.20 : 829,958.70 = 497,318.60 : x
  2. Step 2: Convert to fraction form
    553,743.20/829,958.70 = 497,318.60/x
  3. Step 3: Cross multiply
    553,743.20x = 829,958.70 × 497,318.60
  4. Step 4: Simplify right side
    553,743.20x = 412,753,898,741.82
  5. Step 5: Solve for x
    x = 412,753,898,741.82/553,743.20
  6. Step 6: Final answer
    x = 745,388.65

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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.