Home / 1,038,311.50-1,432,869.87-561,383.50

Finding the Fourth Proportional to 1,038,311.50, 1,432,869.87 and 561,383.50

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Solution

The fourth proportional to 1,038,311.50, 1,432,869.87 and 561,383.50 is: 774,709.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,311.50 : 1,432,869.87 = 561,383.50 : x
  2. Step 2: Convert to fraction form
    1,038,311.50/1,432,869.87 = 561,383.50/x
  3. Step 3: Cross multiply
    1,038,311.50x = 1,432,869.87 × 561,383.50
  4. Step 4: Simplify right side
    1,038,311.50x = 804,389,502,665.15
  5. Step 5: Solve for x
    x = 804,389,502,665.15/1,038,311.50
  6. Step 6: Final answer
    x = 774,709.23

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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.