Home / 917,838.18-1,266,615.36-509,977.56

Finding the Fourth Proportional to 917,838.18, 1,266,615.36 and 509,977.56

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Solution

The fourth proportional to 917,838.18, 1,266,615.36 and 509,977.56 is: 703,768.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,838.18 : 1,266,615.36 = 509,977.56 : x
  2. Step 2: Convert to fraction form
    917,838.18/1,266,615.36 = 509,977.56/x
  3. Step 3: Cross multiply
    917,838.18x = 1,266,615.36 × 509,977.56
  4. Step 4: Simplify right side
    917,838.18x = 645,945,410,751.32
  5. Step 5: Solve for x
    x = 645,945,410,751.32/917,838.18
  6. Step 6: Final answer
    x = 703,768.29

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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.