Home / 778,345.06-1,074,426.51-669,017.74

Finding the Fourth Proportional to 778,345.06, 1,074,426.51 and 669,017.74

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Solution

The fourth proportional to 778,345.06, 1,074,426.51 and 669,017.74 is: 923,511.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,345.06 : 1,074,426.51 = 669,017.74 : x
  2. Step 2: Convert to fraction form
    778,345.06/1,074,426.51 = 669,017.74/x
  3. Step 3: Cross multiply
    778,345.06x = 1,074,426.51 × 669,017.74
  4. Step 4: Simplify right side
    778,345.06x = 718,810,395,516.29
  5. Step 5: Solve for x
    x = 718,810,395,516.29/778,345.06
  6. Step 6: Final answer
    x = 923,511.22

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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.