Home / 939,635.13-1,296,697.29-509,915.22

Finding the Fourth Proportional to 939,635.13, 1,296,697.29 and 509,915.22

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Solution

The fourth proportional to 939,635.13, 1,296,697.29 and 509,915.22 is: 703,683.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,635.13 : 1,296,697.29 = 509,915.22 : x
  2. Step 2: Convert to fraction form
    939,635.13/1,296,697.29 = 509,915.22/x
  3. Step 3: Cross multiply
    939,635.13x = 1,296,697.29 × 509,915.22
  4. Step 4: Simplify right side
    939,635.13x = 661,205,683,903.75
  5. Step 5: Solve for x
    x = 661,205,683,903.75/939,635.13
  6. Step 6: Final answer
    x = 703,683.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.