Home / 1,097,961.28-1,513,983.36-715,278.40

Finding the Fourth Proportional to 1,097,961.28, 1,513,983.36 and 715,278.40

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Solution

The fourth proportional to 1,097,961.28, 1,513,983.36 and 715,278.40 is: 986,300.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,097,961.28 : 1,513,983.36 = 715,278.40 : x
  2. Step 2: Convert to fraction form
    1,097,961.28/1,513,983.36 = 715,278.40/x
  3. Step 3: Cross multiply
    1,097,961.28x = 1,513,983.36 × 715,278.40
  4. Step 4: Simplify right side
    1,097,961.28x = 1,082,919,595,367.42
  5. Step 5: Solve for x
    x = 1,082,919,595,367.42/1,097,961.28
  6. Step 6: Final answer
    x = 986,300.35

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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.