Home / 459,619.60-689,947.80-354,902.80

Finding the Fourth Proportional to 459,619.60, 689,947.80 and 354,902.80

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Solution

The fourth proportional to 459,619.60, 689,947.80 and 354,902.80 is: 532,754.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,619.60 : 689,947.80 = 354,902.80 : x
  2. Step 2: Convert to fraction form
    459,619.60/689,947.80 = 354,902.80/x
  3. Step 3: Cross multiply
    459,619.60x = 689,947.80 × 354,902.80
  4. Step 4: Simplify right side
    459,619.60x = 244,864,406,073.84
  5. Step 5: Solve for x
    x = 244,864,406,073.84/459,619.60
  6. Step 6: Final answer
    x = 532,754.49

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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.