Home / 921,488.16-1,382,349.12-360,449.76

Finding the Fourth Proportional to 921,488.16, 1,382,349.12 and 360,449.76

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Solution

The fourth proportional to 921,488.16, 1,382,349.12 and 360,449.76 is: 540,720.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,488.16 : 1,382,349.12 = 360,449.76 : x
  2. Step 2: Convert to fraction form
    921,488.16/1,382,349.12 = 360,449.76/x
  3. Step 3: Cross multiply
    921,488.16x = 1,382,349.12 × 360,449.76
  4. Step 4: Simplify right side
    921,488.16x = 498,267,408,540.21
  5. Step 5: Solve for x
    x = 498,267,408,540.21/921,488.16
  6. Step 6: Final answer
    x = 540,720.36

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1.5x scale

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.