Home / 1,057,181.33-1,458,699.18-643,440.98

Finding the Fourth Proportional to 1,057,181.33, 1,458,699.18 and 643,440.98

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Solution

The fourth proportional to 1,057,181.33, 1,458,699.18 and 643,440.98 is: 887,820.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,057,181.33 : 1,458,699.18 = 643,440.98 : x
  2. Step 2: Convert to fraction form
    1,057,181.33/1,458,699.18 = 643,440.98/x
  3. Step 3: Cross multiply
    1,057,181.33x = 1,458,699.18 × 643,440.98
  4. Step 4: Simplify right side
    1,057,181.33x = 938,586,829,904.40
  5. Step 5: Solve for x
    x = 938,586,829,904.40/1,057,181.33
  6. Step 6: Final answer
    x = 887,820.10

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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.