Home / 1,247,165.48-1,870,166.64-647,965.56

Finding the Fourth Proportional to 1,247,165.48, 1,870,166.64 and 647,965.56

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Solution

The fourth proportional to 1,247,165.48, 1,870,166.64 and 647,965.56 is: 971,646.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,165.48 : 1,870,166.64 = 647,965.56 : x
  2. Step 2: Convert to fraction form
    1,247,165.48/1,870,166.64 = 647,965.56/x
  3. Step 3: Cross multiply
    1,247,165.48x = 1,870,166.64 × 647,965.56
  4. Step 4: Simplify right side
    1,247,165.48x = 1,211,803,574,180.92
  5. Step 5: Solve for x
    x = 1,211,803,574,180.92/1,247,165.48
  6. Step 6: Final answer
    x = 971,646.18

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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.