Home / 810,178.80-1,214,490.60-630,164.40

Finding the Fourth Proportional to 810,178.80, 1,214,490.60 and 630,164.40

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Solution

The fourth proportional to 810,178.80, 1,214,490.60 and 630,164.40 is: 944,641.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,178.80 : 1,214,490.60 = 630,164.40 : x
  2. Step 2: Convert to fraction form
    810,178.80/1,214,490.60 = 630,164.40/x
  3. Step 3: Cross multiply
    810,178.80x = 1,214,490.60 × 630,164.40
  4. Step 4: Simplify right side
    810,178.80x = 765,328,740,254.64
  5. Step 5: Solve for x
    x = 765,328,740,254.64/810,178.80
  6. Step 6: Final answer
    x = 944,641.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.