Home / 457,587.16-631,256.70-287,914.84

Finding the Fourth Proportional to 457,587.16, 631,256.70 and 287,914.84

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Solution

The fourth proportional to 457,587.16, 631,256.70 and 287,914.84 is: 397,188.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,587.16 : 631,256.70 = 287,914.84 : x
  2. Step 2: Convert to fraction form
    457,587.16/631,256.70 = 287,914.84/x
  3. Step 3: Cross multiply
    457,587.16x = 631,256.70 × 287,914.84
  4. Step 4: Simplify right side
    457,587.16x = 181,748,171,779.43
  5. Step 5: Solve for x
    x = 181,748,171,779.43/457,587.16
  6. Step 6: Final answer
    x = 397,188.09

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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.