Home / 822,345.72-1,135,186.86-500,159.34

Finding the Fourth Proportional to 822,345.72, 1,135,186.86 and 500,159.34

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Solution

The fourth proportional to 822,345.72, 1,135,186.86 and 500,159.34 is: 690,432.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,345.72 : 1,135,186.86 = 500,159.34 : x
  2. Step 2: Convert to fraction form
    822,345.72/1,135,186.86 = 500,159.34/x
  3. Step 3: Cross multiply
    822,345.72x = 1,135,186.86 × 500,159.34
  4. Step 4: Simplify right side
    822,345.72x = 567,774,310,674.27
  5. Step 5: Solve for x
    x = 567,774,310,674.27/822,345.72
  6. Step 6: Final answer
    x = 690,432.62

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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.