Home / 1,415,693.80-2,127,687.90-1,390,810.60

Finding the Fourth Proportional to 1,415,693.80, 2,127,687.90 and 1,390,810.60

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Solution

The fourth proportional to 1,415,693.80, 2,127,687.90 and 1,390,810.60 is: 2,090,290.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,415,693.80 : 2,127,687.90 = 1,390,810.60 : x
  2. Step 2: Convert to fraction form
    1,415,693.80/2,127,687.90 = 1,390,810.60/x
  3. Step 3: Cross multiply
    1,415,693.80x = 2,127,687.90 × 1,390,810.60
  4. Step 4: Simplify right side
    1,415,693.80x = 2,959,210,884,811.74
  5. Step 5: Solve for x
    x = 2,959,210,884,811.74/1,415,693.80
  6. Step 6: Final answer
    x = 2,090,290.21

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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.