Home / 913,222.08-1,369,842.37-407,808.81

Finding the Fourth Proportional to 913,222.08, 1,369,842.37 and 407,808.81

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Solution

The fourth proportional to 913,222.08, 1,369,842.37 and 407,808.81 is: 611,717.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,222.08 : 1,369,842.37 = 407,808.81 : x
  2. Step 2: Convert to fraction form
    913,222.08/1,369,842.37 = 407,808.81/x
  3. Step 3: Cross multiply
    913,222.08x = 1,369,842.37 × 407,808.81
  4. Step 4: Simplify right side
    913,222.08x = 558,633,785,777.76
  5. Step 5: Solve for x
    x = 558,633,785,777.76/913,222.08
  6. Step 6: Final answer
    x = 611,717.34

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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.