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Finding the Fourth Proportional to 733,876.40, 1,099,502.40 and 621,027.20

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Solution

The fourth proportional to 733,876.40, 1,099,502.40 and 621,027.20 is: 930,430.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    733,876.40 : 1,099,502.40 = 621,027.20 : x
  2. Step 2: Convert to fraction form
    733,876.40/1,099,502.40 = 621,027.20/x
  3. Step 3: Cross multiply
    733,876.40x = 1,099,502.40 × 621,027.20
  4. Step 4: Simplify right side
    733,876.40x = 682,820,896,865.28
  5. Step 5: Solve for x
    x = 682,820,896,865.28/733,876.40
  6. Step 6: Final answer
    x = 930,430.38

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1.5x scale

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.