Home / 458,532.10-688,316.55-353,815.30

Finding the Fourth Proportional to 458,532.10, 688,316.55 and 353,815.30

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Solution

The fourth proportional to 458,532.10, 688,316.55 and 353,815.30 is: 531,122.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,532.10 : 688,316.55 = 353,815.30 : x
  2. Step 2: Convert to fraction form
    458,532.10/688,316.55 = 353,815.30/x
  3. Step 3: Cross multiply
    458,532.10x = 688,316.55 × 353,815.30
  4. Step 4: Simplify right side
    458,532.10x = 243,536,926,633.22
  5. Step 5: Solve for x
    x = 243,536,926,633.22/458,532.10
  6. Step 6: Final answer
    x = 531,122.96

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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.