Home / 439,259.60-658,889.40-289,701.20

Finding the Fourth Proportional to 439,259.60, 658,889.40 and 289,701.20

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Solution

The fourth proportional to 439,259.60, 658,889.40 and 289,701.20 is: 434,551.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,259.60 : 658,889.40 = 289,701.20 : x
  2. Step 2: Convert to fraction form
    439,259.60/658,889.40 = 289,701.20/x
  3. Step 3: Cross multiply
    439,259.60x = 658,889.40 × 289,701.20
  4. Step 4: Simplify right side
    439,259.60x = 190,881,049,847.28
  5. Step 5: Solve for x
    x = 190,881,049,847.28/439,259.60
  6. Step 6: Final answer
    x = 434,551.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.