Home / 822,853.26-1,135,080.25-478,650.47

Finding the Fourth Proportional to 822,853.26, 1,135,080.25 and 478,650.47

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Solution

The fourth proportional to 822,853.26, 1,135,080.25 and 478,650.47 is: 660,271.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,853.26 : 1,135,080.25 = 478,650.47 : x
  2. Step 2: Convert to fraction form
    822,853.26/1,135,080.25 = 478,650.47/x
  3. Step 3: Cross multiply
    822,853.26x = 1,135,080.25 × 478,650.47
  4. Step 4: Simplify right side
    822,853.26x = 543,306,688,278.19
  5. Step 5: Solve for x
    x = 543,306,688,278.19/822,853.26
  6. Step 6: Final answer
    x = 660,271.66

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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.