Home / 1,085,390.72-1,497,599.34-626,407.76

Finding the Fourth Proportional to 1,085,390.72, 1,497,599.34 and 626,407.76

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Solution

The fourth proportional to 1,085,390.72, 1,497,599.34 and 626,407.76 is: 864,304.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,085,390.72 : 1,497,599.34 = 626,407.76 : x
  2. Step 2: Convert to fraction form
    1,085,390.72/1,497,599.34 = 626,407.76/x
  3. Step 3: Cross multiply
    1,085,390.72x = 1,497,599.34 × 626,407.76
  4. Step 4: Simplify right side
    1,085,390.72x = 938,107,845,129.85
  5. Step 5: Solve for x
    x = 938,107,845,129.85/1,085,390.72
  6. Step 6: Final answer
    x = 864,304.28

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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.