Home / 1,015,979.52-1,401,768-800,450.40

Finding the Fourth Proportional to 1,015,979.52, 1,401,768 and 800,450.40

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Solution

The fourth proportional to 1,015,979.52, 1,401,768 and 800,450.40 is: 1,104,398.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,015,979.52 : 1,401,768 = 800,450.40 : x
  2. Step 2: Convert to fraction form
    1,015,979.52/1,401,768 = 800,450.40/x
  3. Step 3: Cross multiply
    1,015,979.52x = 1,401,768 × 800,450.40
  4. Step 4: Simplify right side
    1,015,979.52x = 1,122,045,756,307.20
  5. Step 5: Solve for x
    x = 1,122,045,756,307.20/1,015,979.52
  6. Step 6: Final answer
    x = 1,104,398.01

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1.5x scale

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.