Home / 1,385,264.80-2,076,860.40-754,890.40

Finding the Fourth Proportional to 1,385,264.80, 2,076,860.40 and 754,890.40

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Solution

The fourth proportional to 1,385,264.80, 2,076,860.40 and 754,890.40 is: 1,131,770.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,264.80 : 2,076,860.40 = 754,890.40 : x
  2. Step 2: Convert to fraction form
    1,385,264.80/2,076,860.40 = 754,890.40/x
  3. Step 3: Cross multiply
    1,385,264.80x = 2,076,860.40 × 754,890.40
  4. Step 4: Simplify right side
    1,385,264.80x = 1,567,801,978,100.16
  5. Step 5: Solve for x
    x = 1,567,801,978,100.16/1,385,264.80
  6. Step 6: Final answer
    x = 1,131,770.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.