Home / 651,128.76-977,026.59-309,958.31

Finding the Fourth Proportional to 651,128.76, 977,026.59 and 309,958.31

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Solution

The fourth proportional to 651,128.76, 977,026.59 and 309,958.31 is: 465,096.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,128.76 : 977,026.59 = 309,958.31 : x
  2. Step 2: Convert to fraction form
    651,128.76/977,026.59 = 309,958.31/x
  3. Step 3: Cross multiply
    651,128.76x = 977,026.59 × 309,958.31
  4. Step 4: Simplify right side
    651,128.76x = 302,837,513,104.03
  5. Step 5: Solve for x
    x = 302,837,513,104.03/651,128.76
  6. Step 6: Final answer
    x = 465,096.20

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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.