Home / 926,350.20-1,388,869.20-421,153.20

Finding the Fourth Proportional to 926,350.20, 1,388,869.20 and 421,153.20

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Solution

The fourth proportional to 926,350.20, 1,388,869.20 and 421,153.20 is: 631,431.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,350.20 : 1,388,869.20 = 421,153.20 : x
  2. Step 2: Convert to fraction form
    926,350.20/1,388,869.20 = 421,153.20/x
  3. Step 3: Cross multiply
    926,350.20x = 1,388,869.20 × 421,153.20
  4. Step 4: Simplify right side
    926,350.20x = 584,926,707,961.44
  5. Step 5: Solve for x
    x = 584,926,707,961.44/926,350.20
  6. Step 6: Final answer
    x = 631,431.51

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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.