Home / 925,707.74-1,388,561.64-392,855.10

Finding the Fourth Proportional to 925,707.74, 1,388,561.64 and 392,855.10

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Solution

The fourth proportional to 925,707.74, 1,388,561.64 and 392,855.10 is: 589,282.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,707.74 : 1,388,561.64 = 392,855.10 : x
  2. Step 2: Convert to fraction form
    925,707.74/1,388,561.64 = 392,855.10/x
  3. Step 3: Cross multiply
    925,707.74x = 1,388,561.64 × 392,855.10
  4. Step 4: Simplify right side
    925,707.74x = 545,503,521,938.36
  5. Step 5: Solve for x
    x = 545,503,521,938.36/925,707.74
  6. Step 6: Final answer
    x = 589,282.66

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Double scale
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1.5x scale

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.