Home / 699,913.92-1,051,135.44-643,650.24

Finding the Fourth Proportional to 699,913.92, 1,051,135.44 and 643,650.24

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Solution

The fourth proportional to 699,913.92, 1,051,135.44 and 643,650.24 is: 966,638.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,913.92 : 1,051,135.44 = 643,650.24 : x
  2. Step 2: Convert to fraction form
    699,913.92/1,051,135.44 = 643,650.24/x
  3. Step 3: Cross multiply
    699,913.92x = 1,051,135.44 × 643,650.24
  4. Step 4: Simplify right side
    699,913.92x = 676,563,578,228.51
  5. Step 5: Solve for x
    x = 676,563,578,228.51/699,913.92
  6. Step 6: Final answer
    x = 966,638.27

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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.