Home / 1,615,042.62-2,423,682.77-642,307.21

Finding the Fourth Proportional to 1,615,042.62, 2,423,682.77 and 642,307.21

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Solution

The fourth proportional to 1,615,042.62, 2,423,682.77 and 642,307.21 is: 963,905.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615,042.62 : 2,423,682.77 = 642,307.21 : x
  2. Step 2: Convert to fraction form
    1,615,042.62/2,423,682.77 = 642,307.21/x
  3. Step 3: Cross multiply
    1,615,042.62x = 2,423,682.77 × 642,307.21
  4. Step 4: Simplify right side
    1,615,042.62x = 1,556,748,917,923.77
  5. Step 5: Solve for x
    x = 1,556,748,917,923.77/1,615,042.62
  6. Step 6: Final answer
    x = 963,905.78

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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.