Home / 459,009.20-688,319.40-222,424.40

Finding the Fourth Proportional to 459,009.20, 688,319.40 and 222,424.40

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Solution

The fourth proportional to 459,009.20, 688,319.40 and 222,424.40 is: 333,542.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,009.20 : 688,319.40 = 222,424.40 : x
  2. Step 2: Convert to fraction form
    459,009.20/688,319.40 = 222,424.40/x
  3. Step 3: Cross multiply
    459,009.20x = 688,319.40 × 222,424.40
  4. Step 4: Simplify right side
    459,009.20x = 153,099,029,553.36
  5. Step 5: Solve for x
    x = 153,099,029,553.36/459,009.20
  6. Step 6: Final answer
    x = 333,542.40

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1.5x scale

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.