Home / 1,261,092-1,740,300.72-688,130.40

Finding the Fourth Proportional to 1,261,092, 1,740,300.72 and 688,130.40

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Solution

The fourth proportional to 1,261,092, 1,740,300.72 and 688,130.40 is: 949,616.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,092 : 1,740,300.72 = 688,130.40 : x
  2. Step 2: Convert to fraction form
    1,261,092/1,740,300.72 = 688,130.40/x
  3. Step 3: Cross multiply
    1,261,092x = 1,740,300.72 × 688,130.40
  4. Step 4: Simplify right side
    1,261,092x = 1,197,553,830,573.89
  5. Step 5: Solve for x
    x = 1,197,553,830,573.89/1,261,092
  6. Step 6: Final answer
    x = 949,616.55

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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.