Home / 1,643,454.11-2,267,924.32-918,307.78

Finding the Fourth Proportional to 1,643,454.11, 2,267,924.32 and 918,307.78

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Solution

The fourth proportional to 1,643,454.11, 2,267,924.32 and 918,307.78 is: 1,267,241.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643,454.11 : 2,267,924.32 = 918,307.78 : x
  2. Step 2: Convert to fraction form
    1,643,454.11/2,267,924.32 = 918,307.78/x
  3. Step 3: Cross multiply
    1,643,454.11x = 2,267,924.32 × 918,307.78
  4. Step 4: Simplify right side
    1,643,454.11x = 2,082,652,547,507.21
  5. Step 5: Solve for x
    x = 2,082,652,547,507.21/1,643,454.11
  6. Step 6: Final answer
    x = 1,267,241.07

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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.