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Finding the Fourth Proportional to 658,779.06, 987,415.68 and 299,224.10

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Solution

The fourth proportional to 658,779.06, 987,415.68 and 299,224.10 is: 448,494.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,779.06 : 987,415.68 = 299,224.10 : x
  2. Step 2: Convert to fraction form
    658,779.06/987,415.68 = 299,224.10/x
  3. Step 3: Cross multiply
    658,779.06x = 987,415.68 × 299,224.10
  4. Step 4: Simplify right side
    658,779.06x = 295,458,568,173.89
  5. Step 5: Solve for x
    x = 295,458,568,173.89/658,779.06
  6. Step 6: Final answer
    x = 448,494.17

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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.