Home / 820,111.90-1,230,513.45-446,403.10

Finding the Fourth Proportional to 820,111.90, 1,230,513.45 and 446,403.10

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Solution

The fourth proportional to 820,111.90, 1,230,513.45 and 446,403.10 is: 669,792.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,111.90 : 1,230,513.45 = 446,403.10 : x
  2. Step 2: Convert to fraction form
    820,111.90/1,230,513.45 = 446,403.10/x
  3. Step 3: Cross multiply
    820,111.90x = 1,230,513.45 × 446,403.10
  4. Step 4: Simplify right side
    820,111.90x = 549,305,018,671.70
  5. Step 5: Solve for x
    x = 549,305,018,671.70/820,111.90
  6. Step 6: Final answer
    x = 669,792.77

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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.