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Finding the Fourth Proportional to 518,807.12, 716,113.35 and 304,016.37

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Solution

The fourth proportional to 518,807.12, 716,113.35 and 304,016.37 is: 419,636.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,807.12 : 716,113.35 = 304,016.37 : x
  2. Step 2: Convert to fraction form
    518,807.12/716,113.35 = 304,016.37/x
  3. Step 3: Cross multiply
    518,807.12x = 716,113.35 × 304,016.37
  4. Step 4: Simplify right side
    518,807.12x = 217,710,181,175.54
  5. Step 5: Solve for x
    x = 217,710,181,175.54/518,807.12
  6. Step 6: Final answer
    x = 419,636.07

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1.5x scale

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.