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Finding the Fourth Proportional to 517,798.97, 714,783.71 and 348,131.51

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Solution

The fourth proportional to 517,798.97, 714,783.71 and 348,131.51 is: 480,570.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,798.97 : 714,783.71 = 348,131.51 : x
  2. Step 2: Convert to fraction form
    517,798.97/714,783.71 = 348,131.51/x
  3. Step 3: Cross multiply
    517,798.97x = 714,783.71 × 348,131.51
  4. Step 4: Simplify right side
    517,798.97x = 248,838,734,942.99
  5. Step 5: Solve for x
    x = 248,838,734,942.99/517,798.97
  6. Step 6: Final answer
    x = 480,570.16

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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.