Home / 939,322.67-1,296,267.74-509,602.79

Finding the Fourth Proportional to 939,322.67, 1,296,267.74 and 509,602.79

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Solution

The fourth proportional to 939,322.67, 1,296,267.74 and 509,602.79 is: 703,253.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,322.67 : 1,296,267.74 = 509,602.79 : x
  2. Step 2: Convert to fraction form
    939,322.67/1,296,267.74 = 509,602.79/x
  3. Step 3: Cross multiply
    939,322.67x = 1,296,267.74 × 509,602.79
  4. Step 4: Simplify right side
    939,322.67x = 660,581,654,342.98
  5. Step 5: Solve for x
    x = 660,581,654,342.98/939,322.67
  6. Step 6: Final answer
    x = 703,253.18

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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.