Home / 720,981.84-1,082,122.80-384,302.92

Finding the Fourth Proportional to 720,981.84, 1,082,122.80 and 384,302.92

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Solution

The fourth proportional to 720,981.84, 1,082,122.80 and 384,302.92 is: 576,800.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,981.84 : 1,082,122.80 = 384,302.92 : x
  2. Step 2: Convert to fraction form
    720,981.84/1,082,122.80 = 384,302.92/x
  3. Step 3: Cross multiply
    720,981.84x = 1,082,122.80 × 384,302.92
  4. Step 4: Simplify right side
    720,981.84x = 415,862,951,838.58
  5. Step 5: Solve for x
    x = 415,862,951,838.58/720,981.84
  6. Step 6: Final answer
    x = 576,800.87

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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.