Home / 648,862.74-972,961.83-345,429.27

Finding the Fourth Proportional to 648,862.74, 972,961.83 and 345,429.27

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Solution

The fourth proportional to 648,862.74, 972,961.83 and 345,429.27 is: 517,967.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,862.74 : 972,961.83 = 345,429.27 : x
  2. Step 2: Convert to fraction form
    648,862.74/972,961.83 = 345,429.27/x
  3. Step 3: Cross multiply
    648,862.74x = 972,961.83 × 345,429.27
  4. Step 4: Simplify right side
    648,862.74x = 336,089,494,674.76
  5. Step 5: Solve for x
    x = 336,089,494,674.76/648,862.74
  6. Step 6: Final answer
    x = 517,967.01

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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.