Home / 939,627.17-1,296,686.35-509,907.31

Finding the Fourth Proportional to 939,627.17, 1,296,686.35 and 509,907.31

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Solution

The fourth proportional to 939,627.17, 1,296,686.35 and 509,907.31 is: 703,672.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,627.17 : 1,296,686.35 = 509,907.31 : x
  2. Step 2: Convert to fraction form
    939,627.17/1,296,686.35 = 509,907.31/x
  3. Step 3: Cross multiply
    939,627.17x = 1,296,686.35 × 509,907.31
  4. Step 4: Simplify right side
    939,627.17x = 661,189,844,603.77
  5. Step 5: Solve for x
    x = 661,189,844,603.77/939,627.17
  6. Step 6: Final answer
    x = 703,672.54

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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.