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Finding the Fourth Proportional to 518,899.32, 716,050.18 and 301,091.13

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Solution

The fourth proportional to 518,899.32, 716,050.18 and 301,091.13 is: 415,487.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,899.32 : 716,050.18 = 301,091.13 : x
  2. Step 2: Convert to fraction form
    518,899.32/716,050.18 = 301,091.13/x
  3. Step 3: Cross multiply
    518,899.32x = 716,050.18 × 301,091.13
  4. Step 4: Simplify right side
    518,899.32x = 215,596,357,832.90
  5. Step 5: Solve for x
    x = 215,596,357,832.90/518,899.32
  6. Step 6: Final answer
    x = 415,487.84

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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.