Home / 459,007.20-688,316.40-222,422.40

Finding the Fourth Proportional to 459,007.20, 688,316.40 and 222,422.40

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Solution

The fourth proportional to 459,007.20, 688,316.40 and 222,422.40 is: 333,539.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,007.20 : 688,316.40 = 222,422.40 : x
  2. Step 2: Convert to fraction form
    459,007.20/688,316.40 = 222,422.40/x
  3. Step 3: Cross multiply
    459,007.20x = 688,316.40 × 222,422.40
  4. Step 4: Simplify right side
    459,007.20x = 153,096,985,647.36
  5. Step 5: Solve for x
    x = 153,096,985,647.36/459,007.20
  6. Step 6: Final answer
    x = 333,539.40

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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.