Home / 1,421,455-2,132,551.88-424,183

Finding the Fourth Proportional to 1,421,455, 2,132,551.88 and 424,183

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Solution

The fourth proportional to 1,421,455, 2,132,551.88 and 424,183 is: 636,384.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,455 : 2,132,551.88 = 424,183 : x
  2. Step 2: Convert to fraction form
    1,421,455/2,132,551.88 = 424,183/x
  3. Step 3: Cross multiply
    1,421,455x = 2,132,551.88 × 424,183
  4. Step 4: Simplify right side
    1,421,455x = 904,592,254,114.04
  5. Step 5: Solve for x
    x = 904,592,254,114.04/1,421,455
  6. Step 6: Final answer
    x = 636,384.73

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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.