Home / 1,112,312.80-1,668,080.40-579,656.80

Finding the Fourth Proportional to 1,112,312.80, 1,668,080.40 and 579,656.80

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Solution

The fourth proportional to 1,112,312.80, 1,668,080.40 and 579,656.80 is: 869,282.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,312.80 : 1,668,080.40 = 579,656.80 : x
  2. Step 2: Convert to fraction form
    1,112,312.80/1,668,080.40 = 579,656.80/x
  3. Step 3: Cross multiply
    1,112,312.80x = 1,668,080.40 × 579,656.80
  4. Step 4: Simplify right side
    1,112,312.80x = 966,914,146,806.72
  5. Step 5: Solve for x
    x = 966,914,146,806.72/1,112,312.80
  6. Step 6: Final answer
    x = 869,282.59

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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.