Home / 814,513.15-1,123,742.28-470,339.29

Finding the Fourth Proportional to 814,513.15, 1,123,742.28 and 470,339.29

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Solution

The fourth proportional to 814,513.15, 1,123,742.28 and 470,339.29 is: 648,903.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,513.15 : 1,123,742.28 = 470,339.29 : x
  2. Step 2: Convert to fraction form
    814,513.15/1,123,742.28 = 470,339.29/x
  3. Step 3: Cross multiply
    814,513.15x = 1,123,742.28 × 470,339.29
  4. Step 4: Simplify right side
    814,513.15x = 528,540,146,118.18
  5. Step 5: Solve for x
    x = 528,540,146,118.18/814,513.15
  6. Step 6: Final answer
    x = 648,903.15

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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.