Home / 822,570.83-1,135,139.96-459,990.53

Finding the Fourth Proportional to 822,570.83, 1,135,139.96 and 459,990.53

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Solution

The fourth proportional to 822,570.83, 1,135,139.96 and 459,990.53 is: 634,782.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,570.83 : 1,135,139.96 = 459,990.53 : x
  2. Step 2: Convert to fraction form
    822,570.83/1,135,139.96 = 459,990.53/x
  3. Step 3: Cross multiply
    822,570.83x = 1,135,139.96 × 459,990.53
  4. Step 4: Simplify right side
    822,570.83x = 522,153,626,148.88
  5. Step 5: Solve for x
    x = 522,153,626,148.88/822,570.83
  6. Step 6: Final answer
    x = 634,782.57

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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.