Home / 1,421,335.64-2,131,128.66-474,452.12

Finding the Fourth Proportional to 1,421,335.64, 2,131,128.66 and 474,452.12

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Solution

The fourth proportional to 1,421,335.64, 2,131,128.66 and 474,452.12 is: 711,386.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,335.64 : 2,131,128.66 = 474,452.12 : x
  2. Step 2: Convert to fraction form
    1,421,335.64/2,131,128.66 = 474,452.12/x
  3. Step 3: Cross multiply
    1,421,335.64x = 2,131,128.66 × 474,452.12
  4. Step 4: Simplify right side
    1,421,335.64x = 1,011,118,510,729.76
  5. Step 5: Solve for x
    x = 1,011,118,510,729.76/1,421,335.64
  6. Step 6: Final answer
    x = 711,386.17

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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.