Home / 1,385,271.64-2,078,115.26-486,555

Finding the Fourth Proportional to 1,385,271.64, 2,078,115.26 and 486,555

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Solution

The fourth proportional to 1,385,271.64, 2,078,115.26 and 486,555 is: 729,905.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,271.64 : 2,078,115.26 = 486,555 : x
  2. Step 2: Convert to fraction form
    1,385,271.64/2,078,115.26 = 486,555/x
  3. Step 3: Cross multiply
    1,385,271.64x = 2,078,115.26 × 486,555
  4. Step 4: Simplify right side
    1,385,271.64x = 1,011,117,370,329.30
  5. Step 5: Solve for x
    x = 1,011,117,370,329.30/1,385,271.64
  6. Step 6: Final answer
    x = 729,905.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.