Home / 553,631.69-764,011.74-298,982.88

Finding the Fourth Proportional to 553,631.69, 764,011.74 and 298,982.88

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Solution

The fourth proportional to 553,631.69, 764,011.74 and 298,982.88 is: 412,596.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,631.69 : 764,011.74 = 298,982.88 : x
  2. Step 2: Convert to fraction form
    553,631.69/764,011.74 = 298,982.88/x
  3. Step 3: Cross multiply
    553,631.69x = 764,011.74 × 298,982.88
  4. Step 4: Simplify right side
    553,631.69x = 228,426,430,379.01
  5. Step 5: Solve for x
    x = 228,426,430,379.01/553,631.69
  6. Step 6: Final answer
    x = 412,596.38

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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.