Home / 1,680,961.36-2,319,732.12-917,030.92

Finding the Fourth Proportional to 1,680,961.36, 2,319,732.12 and 917,030.92

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Solution

The fourth proportional to 1,680,961.36, 2,319,732.12 and 917,030.92 is: 1,265,505.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,680,961.36 : 2,319,732.12 = 917,030.92 : x
  2. Step 2: Convert to fraction form
    1,680,961.36/2,319,732.12 = 917,030.92/x
  3. Step 3: Cross multiply
    1,680,961.36x = 2,319,732.12 × 917,030.92
  4. Step 4: Simplify right side
    1,680,961.36x = 2,127,266,080,157.15
  5. Step 5: Solve for x
    x = 2,127,266,080,157.15/1,680,961.36
  6. Step 6: Final answer
    x = 1,265,505.64

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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.