Home / 888,420.24-1,333,220.40-415,142.16

Finding the Fourth Proportional to 888,420.24, 1,333,220.40 and 415,142.16

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Solution

The fourth proportional to 888,420.24, 1,333,220.40 and 415,142.16 is: 622,988.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,420.24 : 1,333,220.40 = 415,142.16 : x
  2. Step 2: Convert to fraction form
    888,420.24/1,333,220.40 = 415,142.16/x
  3. Step 3: Cross multiply
    888,420.24x = 1,333,220.40 × 415,142.16
  4. Step 4: Simplify right side
    888,420.24x = 553,475,996,612.06
  5. Step 5: Solve for x
    x = 553,475,996,612.06/888,420.24
  6. Step 6: Final answer
    x = 622,988.95

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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.