Home / 1,029,579.29-1,420,338.83-647,816.57

Finding the Fourth Proportional to 1,029,579.29, 1,420,338.83 and 647,816.57

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Solution

The fourth proportional to 1,029,579.29, 1,420,338.83 and 647,816.57 is: 893,684.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,029,579.29 : 1,420,338.83 = 647,816.57 : x
  2. Step 2: Convert to fraction form
    1,029,579.29/1,420,338.83 = 647,816.57/x
  3. Step 3: Cross multiply
    1,029,579.29x = 1,420,338.83 × 647,816.57
  4. Step 4: Simplify right side
    1,029,579.29x = 920,119,029,088.41
  5. Step 5: Solve for x
    x = 920,119,029,088.41/1,029,579.29
  6. Step 6: Final answer
    x = 893,684.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.