Home / 1,486,421.64-2,229,717.24-421,380

Finding the Fourth Proportional to 1,486,421.64, 2,229,717.24 and 421,380

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Solution

The fourth proportional to 1,486,421.64, 2,229,717.24 and 421,380 is: 632,094.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,486,421.64 : 2,229,717.24 = 421,380 : x
  2. Step 2: Convert to fraction form
    1,486,421.64/2,229,717.24 = 421,380/x
  3. Step 3: Cross multiply
    1,486,421.64x = 2,229,717.24 × 421,380
  4. Step 4: Simplify right side
    1,486,421.64x = 939,558,250,591.20
  5. Step 5: Solve for x
    x = 939,558,250,591.20/1,486,421.64
  6. Step 6: Final answer
    x = 632,094.03

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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.