Home / 931,714.09-1,396,145.59-626,979.72

Finding the Fourth Proportional to 931,714.09, 1,396,145.59 and 626,979.72

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Solution

The fourth proportional to 931,714.09, 1,396,145.59 and 626,979.72 is: 939,510.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,714.09 : 1,396,145.59 = 626,979.72 : x
  2. Step 2: Convert to fraction form
    931,714.09/1,396,145.59 = 626,979.72/x
  3. Step 3: Cross multiply
    931,714.09x = 1,396,145.59 × 626,979.72
  4. Step 4: Simplify right side
    931,714.09x = 875,354,971,097.44
  5. Step 5: Solve for x
    x = 875,354,971,097.44/931,714.09
  6. Step 6: Final answer
    x = 939,510.29

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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.