Home / 1,759,618.80-2,639,428.20-1,129,244.40

Finding the Fourth Proportional to 1,759,618.80, 2,639,428.20 and 1,129,244.40

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Solution

The fourth proportional to 1,759,618.80, 2,639,428.20 and 1,129,244.40 is: 1,693,866.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,759,618.80 : 2,639,428.20 = 1,129,244.40 : x
  2. Step 2: Convert to fraction form
    1,759,618.80/2,639,428.20 = 1,129,244.40/x
  3. Step 3: Cross multiply
    1,759,618.80x = 2,639,428.20 × 1,129,244.40
  4. Step 4: Simplify right side
    1,759,618.80x = 2,980,559,514,052.08
  5. Step 5: Solve for x
    x = 2,980,559,514,052.08/1,759,618.80
  6. Step 6: Final answer
    x = 1,693,866.60

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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.