Home / 917,367.60-1,266,009.24-509,471.28

Finding the Fourth Proportional to 917,367.60, 1,266,009.24 and 509,471.28

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Solution

The fourth proportional to 917,367.60, 1,266,009.24 and 509,471.28 is: 703,093.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,367.60 : 1,266,009.24 = 509,471.28 : x
  2. Step 2: Convert to fraction form
    917,367.60/1,266,009.24 = 509,471.28/x
  3. Step 3: Cross multiply
    917,367.60x = 1,266,009.24 × 509,471.28
  4. Step 4: Simplify right side
    917,367.60x = 644,995,347,994.63
  5. Step 5: Solve for x
    x = 644,995,347,994.63/917,367.60
  6. Step 6: Final answer
    x = 703,093.66

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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.