Home / 991,718.25-1,369,133.16-758,706.78

Finding the Fourth Proportional to 991,718.25, 1,369,133.16 and 758,706.78

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Solution

The fourth proportional to 991,718.25, 1,369,133.16 and 758,706.78 is: 1,047,445.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,718.25 : 1,369,133.16 = 758,706.78 : x
  2. Step 2: Convert to fraction form
    991,718.25/1,369,133.16 = 758,706.78/x
  3. Step 3: Cross multiply
    991,718.25x = 1,369,133.16 × 758,706.78
  4. Step 4: Simplify right side
    991,718.25x = 1,038,770,611,214.82
  5. Step 5: Solve for x
    x = 1,038,770,611,214.82/991,718.25
  6. Step 6: Final answer
    x = 1,047,445.29

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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.