Home / 710,857.62-1,061,746.79-643,284.90

Finding the Fourth Proportional to 710,857.62, 1,061,746.79 and 643,284.90

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Solution

The fourth proportional to 710,857.62, 1,061,746.79 and 643,284.90 is: 960,819.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,857.62 : 1,061,746.79 = 643,284.90 : x
  2. Step 2: Convert to fraction form
    710,857.62/1,061,746.79 = 643,284.90/x
  3. Step 3: Cross multiply
    710,857.62x = 1,061,746.79 × 643,284.90
  4. Step 4: Simplify right side
    710,857.62x = 683,005,674,414.05
  5. Step 5: Solve for x
    x = 683,005,674,414.05/710,857.62
  6. Step 6: Final answer
    x = 960,819.23

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.