Home / 939,322.20-1,296,263.58-509,602.20

Finding the Fourth Proportional to 939,322.20, 1,296,263.58 and 509,602.20

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Solution

The fourth proportional to 939,322.20, 1,296,263.58 and 509,602.20 is: 703,250.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,322.20 : 1,296,263.58 = 509,602.20 : x
  2. Step 2: Convert to fraction form
    939,322.20/1,296,263.58 = 509,602.20/x
  3. Step 3: Cross multiply
    939,322.20x = 1,296,263.58 × 509,602.20
  4. Step 4: Simplify right side
    939,322.20x = 660,578,772,147.88
  5. Step 5: Solve for x
    x = 660,578,772,147.88/939,322.20
  6. Step 6: Final answer
    x = 703,250.46

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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.