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Finding the Fourth Proportional to 822,699.12, 1,135,316.88 and 460,118.64

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Solution

The fourth proportional to 822,699.12, 1,135,316.88 and 460,118.64 is: 634,959.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,699.12 : 1,135,316.88 = 460,118.64 : x
  2. Step 2: Convert to fraction form
    822,699.12/1,135,316.88 = 460,118.64/x
  3. Step 3: Cross multiply
    822,699.12x = 1,135,316.88 × 460,118.64
  4. Step 4: Simplify right side
    822,699.12x = 522,380,458,794.64
  5. Step 5: Solve for x
    x = 522,380,458,794.64/822,699.12
  6. Step 6: Final answer
    x = 634,959.30

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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.