Home / 1,021,066.32-1,409,046.84-639,303.60

Finding the Fourth Proportional to 1,021,066.32, 1,409,046.84 and 639,303.60

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Solution

The fourth proportional to 1,021,066.32, 1,409,046.84 and 639,303.60 is: 882,223.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,066.32 : 1,409,046.84 = 639,303.60 : x
  2. Step 2: Convert to fraction form
    1,021,066.32/1,409,046.84 = 639,303.60/x
  3. Step 3: Cross multiply
    1,021,066.32x = 1,409,046.84 × 639,303.60
  4. Step 4: Simplify right side
    1,021,066.32x = 900,808,717,380.62
  5. Step 5: Solve for x
    x = 900,808,717,380.62/1,021,066.32
  6. Step 6: Final answer
    x = 882,223.51

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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.