Home / 917,259.56-1,265,860.34-509,362.98

Finding the Fourth Proportional to 917,259.56, 1,265,860.34 and 509,362.98

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Solution

The fourth proportional to 917,259.56, 1,265,860.34 and 509,362.98 is: 702,944.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,259.56 : 1,265,860.34 = 509,362.98 : x
  2. Step 2: Convert to fraction form
    917,259.56/1,265,860.34 = 509,362.98/x
  3. Step 3: Cross multiply
    917,259.56x = 1,265,860.34 × 509,362.98
  4. Step 4: Simplify right side
    917,259.56x = 644,782,396,783.00
  5. Step 5: Solve for x
    x = 644,782,396,783.00/917,259.56
  6. Step 6: Final answer
    x = 702,944.32

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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.