Home / 553,631.52-764,011.50-298,982.70

Finding the Fourth Proportional to 553,631.52, 764,011.50 and 298,982.70

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Solution

The fourth proportional to 553,631.52, 764,011.50 and 298,982.70 is: 412,596.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,631.52 : 764,011.50 = 298,982.70 : x
  2. Step 2: Convert to fraction form
    553,631.52/764,011.50 = 298,982.70/x
  3. Step 3: Cross multiply
    553,631.52x = 764,011.50 × 298,982.70
  4. Step 4: Simplify right side
    553,631.52x = 228,426,221,101.05
  5. Step 5: Solve for x
    x = 228,426,221,101.05/553,631.52
  6. Step 6: Final answer
    x = 412,596.13

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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.