Home / 457,588.85-631,259.03-287,916.53

Finding the Fourth Proportional to 457,588.85, 631,259.03 and 287,916.53

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Solution

The fourth proportional to 457,588.85, 631,259.03 and 287,916.53 is: 397,190.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,588.85 : 631,259.03 = 287,916.53 : x
  2. Step 2: Convert to fraction form
    457,588.85/631,259.03 = 287,916.53/x
  3. Step 3: Cross multiply
    457,588.85x = 631,259.03 × 287,916.53
  4. Step 4: Simplify right side
    457,588.85x = 181,749,908,009.18
  5. Step 5: Solve for x
    x = 181,749,908,009.18/457,588.85
  6. Step 6: Final answer
    x = 397,190.42

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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.