Home / 1,423,168.47-1,963,934.84-842,421.56

Finding the Fourth Proportional to 1,423,168.47, 1,963,934.84 and 842,421.56

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Solution

The fourth proportional to 1,423,168.47, 1,963,934.84 and 842,421.56 is: 1,162,519.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423,168.47 : 1,963,934.84 = 842,421.56 : x
  2. Step 2: Convert to fraction form
    1,423,168.47/1,963,934.84 = 842,421.56/x
  3. Step 3: Cross multiply
    1,423,168.47x = 1,963,934.84 × 842,421.56
  4. Step 4: Simplify right side
    1,423,168.47x = 1,654,461,043,937.53
  5. Step 5: Solve for x
    x = 1,654,461,043,937.53/1,423,168.47
  6. Step 6: Final answer
    x = 1,162,519.46

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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.