Home / 1,142,805.72-1,577,063.16-626,553.48

Finding the Fourth Proportional to 1,142,805.72, 1,577,063.16 and 626,553.48

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Solution

The fourth proportional to 1,142,805.72, 1,577,063.16 and 626,553.48 is: 864,639.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,142,805.72 : 1,577,063.16 = 626,553.48 : x
  2. Step 2: Convert to fraction form
    1,142,805.72/1,577,063.16 = 626,553.48/x
  3. Step 3: Cross multiply
    1,142,805.72x = 1,577,063.16 × 626,553.48
  4. Step 4: Simplify right side
    1,142,805.72x = 988,114,411,077.80
  5. Step 5: Solve for x
    x = 988,114,411,077.80/1,142,805.72
  6. Step 6: Final answer
    x = 864,639.01

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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.