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Finding the Fourth Proportional to 1,259,569,300.52, 1,737,990,401.11 and 730,812,077.57

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Solution

The fourth proportional to 1,259,569,300.52, 1,737,990,401.11 and 730,812,077.57 is: 1,008,395,786.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,569,300.52 : 1,737,990,401.11 = 730,812,077.57 : x
  2. Step 2: Convert to fraction form
    1,259,569,300.52/1,737,990,401.11 = 730,812,077.57/x
  3. Step 3: Cross multiply
    1,259,569,300.52x = 1,737,990,401.11 × 730,812,077.57
  4. Step 4: Simplify right side
    1,259,569,300.52x = 1,270,144,375,831,916,800
  5. Step 5: Solve for x
    x = 1,270,144,375,831,916,800/1,259,569,300.52
  6. Step 6: Final answer
    x = 1,008,395,786.80

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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.