Home / 1,420,897.80-1,960,816.02-776,304.12

Finding the Fourth Proportional to 1,420,897.80, 1,960,816.02 and 776,304.12

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Solution

The fourth proportional to 1,420,897.80, 1,960,816.02 and 776,304.12 is: 1,071,287.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,897.80 : 1,960,816.02 = 776,304.12 : x
  2. Step 2: Convert to fraction form
    1,420,897.80/1,960,816.02 = 776,304.12/x
  3. Step 3: Cross multiply
    1,420,897.80x = 1,960,816.02 × 776,304.12
  4. Step 4: Simplify right side
    1,420,897.80x = 1,522,189,554,888.00
  5. Step 5: Solve for x
    x = 1,522,189,554,888.00/1,420,897.80
  6. Step 6: Final answer
    x = 1,071,287.15

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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.