Home / 1,127,869.02-1,556,315.85-644,465.49

Finding the Fourth Proportional to 1,127,869.02, 1,556,315.85 and 644,465.49

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Solution

The fourth proportional to 1,127,869.02, 1,556,315.85 and 644,465.49 is: 889,280.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,869.02 : 1,556,315.85 = 644,465.49 : x
  2. Step 2: Convert to fraction form
    1,127,869.02/1,556,315.85 = 644,465.49/x
  3. Step 3: Cross multiply
    1,127,869.02x = 1,556,315.85 × 644,465.49
  4. Step 4: Simplify right side
    1,127,869.02x = 1,002,991,856,865.02
  5. Step 5: Solve for x
    x = 1,002,991,856,865.02/1,127,869.02
  6. Step 6: Final answer
    x = 889,280.44

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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.