Home / 1,287,274.23-1,778,574.38-1,017,411.39

Finding the Fourth Proportional to 1,287,274.23, 1,778,574.38 and 1,017,411.39

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Solution

The fourth proportional to 1,287,274.23, 1,778,574.38 and 1,017,411.39 is: 1,405,715.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,274.23 : 1,778,574.38 = 1,017,411.39 : x
  2. Step 2: Convert to fraction form
    1,287,274.23/1,778,574.38 = 1,017,411.39/x
  3. Step 3: Cross multiply
    1,287,274.23x = 1,778,574.38 × 1,017,411.39
  4. Step 4: Simplify right side
    1,287,274.23x = 1,809,541,827,087.13
  5. Step 5: Solve for x
    x = 1,809,541,827,087.13/1,287,274.23
  6. Step 6: Final answer
    x = 1,405,715.88

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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.