Home / 1,109,645.68-1,531,310.52-626,312.20

Finding the Fourth Proportional to 1,109,645.68, 1,531,310.52 and 626,312.20

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Solution

The fourth proportional to 1,109,645.68, 1,531,310.52 and 626,312.20 is: 864,310.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,645.68 : 1,531,310.52 = 626,312.20 : x
  2. Step 2: Convert to fraction form
    1,109,645.68/1,531,310.52 = 626,312.20/x
  3. Step 3: Cross multiply
    1,109,645.68x = 1,531,310.52 × 626,312.20
  4. Step 4: Simplify right side
    1,109,645.68x = 959,078,460,664.34
  5. Step 5: Solve for x
    x = 959,078,460,664.34/1,109,645.68
  6. Step 6: Final answer
    x = 864,310.54

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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.