Home / 459,365.28-689,047.98-143,846.82

Finding the Fourth Proportional to 459,365.28, 689,047.98 and 143,846.82

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Solution

The fourth proportional to 459,365.28, 689,047.98 and 143,846.82 is: 215,770.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,365.28 : 689,047.98 = 143,846.82 : x
  2. Step 2: Convert to fraction form
    459,365.28/689,047.98 = 143,846.82/x
  3. Step 3: Cross multiply
    459,365.28x = 689,047.98 × 143,846.82
  4. Step 4: Simplify right side
    459,365.28x = 99,117,360,750.42
  5. Step 5: Solve for x
    x = 99,117,360,750.42/459,365.28
  6. Step 6: Final answer
    x = 215,770.25

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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.