Home / 813,738.15-1,122,903.81-469,588.39

Finding the Fourth Proportional to 813,738.15, 1,122,903.81 and 469,588.39

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Solution

The fourth proportional to 813,738.15, 1,122,903.81 and 469,588.39 is: 648,000.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,738.15 : 1,122,903.81 = 469,588.39 : x
  2. Step 2: Convert to fraction form
    813,738.15/1,122,903.81 = 469,588.39/x
  3. Step 3: Cross multiply
    813,738.15x = 1,122,903.81 × 469,588.39
  4. Step 4: Simplify right side
    813,738.15x = 527,302,589,455.51
  5. Step 5: Solve for x
    x = 527,302,589,455.51/813,738.15
  6. Step 6: Final answer
    x = 648,000.33

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1.5x scale

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.