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Finding the Fourth Proportional to 554,359.16, 765,017.51 and 299,712.17

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Solution

The fourth proportional to 554,359.16, 765,017.51 and 299,712.17 is: 413,603.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,359.16 : 765,017.51 = 299,712.17 : x
  2. Step 2: Convert to fraction form
    554,359.16/765,017.51 = 299,712.17/x
  3. Step 3: Cross multiply
    554,359.16x = 765,017.51 × 299,712.17
  4. Step 4: Simplify right side
    554,359.16x = 229,285,052,686.45
  5. Step 5: Solve for x
    x = 229,285,052,686.45/554,359.16
  6. Step 6: Final answer
    x = 413,603.80

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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.