Home / 822,859.26-1,135,088.52-478,656.47

Finding the Fourth Proportional to 822,859.26, 1,135,088.52 and 478,656.47

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Solution

The fourth proportional to 822,859.26, 1,135,088.52 and 478,656.47 is: 660,279.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,859.26 : 1,135,088.52 = 478,656.47 : x
  2. Step 2: Convert to fraction form
    822,859.26/1,135,088.52 = 478,656.47/x
  3. Step 3: Cross multiply
    822,859.26x = 1,135,088.52 × 478,656.47
  4. Step 4: Simplify right side
    822,859.26x = 543,317,458,445.28
  5. Step 5: Solve for x
    x = 543,317,458,445.28/822,859.26
  6. Step 6: Final answer
    x = 660,279.93

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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.