Home / 821,039.40-1,232,480.70-634,876.20

Finding the Fourth Proportional to 821,039.40, 1,232,480.70 and 634,876.20

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Solution

The fourth proportional to 821,039.40, 1,232,480.70 and 634,876.20 is: 953,026.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,039.40 : 1,232,480.70 = 634,876.20 : x
  2. Step 2: Convert to fraction form
    821,039.40/1,232,480.70 = 634,876.20/x
  3. Step 3: Cross multiply
    821,039.40x = 1,232,480.70 × 634,876.20
  4. Step 4: Simplify right side
    821,039.40x = 782,472,663,389.34
  5. Step 5: Solve for x
    x = 782,472,663,389.34/821,039.40
  6. Step 6: Final answer
    x = 953,026.94

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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.