Home / 553,623.72-764,000.72-298,974.89

Finding the Fourth Proportional to 553,623.72, 764,000.72 and 298,974.89

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Solution

The fourth proportional to 553,623.72, 764,000.72 and 298,974.89 is: 412,585.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,623.72 : 764,000.72 = 298,974.89 : x
  2. Step 2: Convert to fraction form
    553,623.72/764,000.72 = 298,974.89/x
  3. Step 3: Cross multiply
    553,623.72x = 764,000.72 × 298,974.89
  4. Step 4: Simplify right side
    553,623.72x = 228,417,025,907.04
  5. Step 5: Solve for x
    x = 228,417,025,907.04/553,623.72
  6. Step 6: Final answer
    x = 412,585.33

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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.