Home / 459,043.60-688,565.40-210,211.60

Finding the Fourth Proportional to 459,043.60, 688,565.40 and 210,211.60

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Solution

The fourth proportional to 459,043.60, 688,565.40 and 210,211.60 is: 315,317.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,043.60 : 688,565.40 = 210,211.60 : x
  2. Step 2: Convert to fraction form
    459,043.60/688,565.40 = 210,211.60/x
  3. Step 3: Cross multiply
    459,043.60x = 688,565.40 × 210,211.60
  4. Step 4: Simplify right side
    459,043.60x = 144,744,434,438.64
  5. Step 5: Solve for x
    x = 144,744,434,438.64/459,043.60
  6. Step 6: Final answer
    x = 315,317.40

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Similar ratio
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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.