Home / 1,451,724-2,003,379.12-815,820

Finding the Fourth Proportional to 1,451,724, 2,003,379.12 and 815,820

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Solution

The fourth proportional to 1,451,724, 2,003,379.12 and 815,820 is: 1,125,831.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,451,724 : 2,003,379.12 = 815,820 : x
  2. Step 2: Convert to fraction form
    1,451,724/2,003,379.12 = 815,820/x
  3. Step 3: Cross multiply
    1,451,724x = 2,003,379.12 × 815,820
  4. Step 4: Simplify right side
    1,451,724x = 1,634,396,753,678.40
  5. Step 5: Solve for x
    x = 1,634,396,753,678.40/1,451,724
  6. Step 6: Final answer
    x = 1,125,831.60

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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.