Home / 913,223.08-1,369,843.87-407,809.81

Finding the Fourth Proportional to 913,223.08, 1,369,843.87 and 407,809.81

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Solution

The fourth proportional to 913,223.08, 1,369,843.87 and 407,809.81 is: 611,718.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,223.08 : 1,369,843.87 = 407,809.81 : x
  2. Step 2: Convert to fraction form
    913,223.08/1,369,843.87 = 407,809.81/x
  3. Step 3: Cross multiply
    913,223.08x = 1,369,843.87 × 407,809.81
  4. Step 4: Simplify right side
    913,223.08x = 558,635,768,354.37
  5. Step 5: Solve for x
    x = 558,635,768,354.37/913,223.08
  6. Step 6: Final answer
    x = 611,718.85

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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.