Home / 553,621.53-763,997.70-298,972.69

Finding the Fourth Proportional to 553,621.53, 763,997.70 and 298,972.69

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Solution

The fourth proportional to 553,621.53, 763,997.70 and 298,972.69 is: 412,582.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,621.53 : 763,997.70 = 298,972.69 : x
  2. Step 2: Convert to fraction form
    553,621.53/763,997.70 = 298,972.69/x
  3. Step 3: Cross multiply
    553,621.53x = 763,997.70 × 298,972.69
  4. Step 4: Simplify right side
    553,621.53x = 228,414,447,522.81
  5. Step 5: Solve for x
    x = 228,414,447,522.81/553,621.53
  6. Step 6: Final answer
    x = 412,582.31

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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.