Home / 1,388,614.94-1,915,516.89-807,772.70

Finding the Fourth Proportional to 1,388,614.94, 1,915,516.89 and 807,772.70

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Solution

The fourth proportional to 1,388,614.94, 1,915,516.89 and 807,772.70 is: 1,114,277.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,614.94 : 1,915,516.89 = 807,772.70 : x
  2. Step 2: Convert to fraction form
    1,388,614.94/1,915,516.89 = 807,772.70/x
  3. Step 3: Cross multiply
    1,388,614.94x = 1,915,516.89 × 807,772.70
  4. Step 4: Simplify right side
    1,388,614.94x = 1,547,302,250,130.90
  5. Step 5: Solve for x
    x = 1,547,302,250,130.90/1,388,614.94
  6. Step 6: Final answer
    x = 1,114,277.40

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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.