Home / 917,369.13-1,266,011.43-509,472.84

Finding the Fourth Proportional to 917,369.13, 1,266,011.43 and 509,472.84

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Solution

The fourth proportional to 917,369.13, 1,266,011.43 and 509,472.84 is: 703,095.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,369.13 : 1,266,011.43 = 509,472.84 : x
  2. Step 2: Convert to fraction form
    917,369.13/1,266,011.43 = 509,472.84/x
  3. Step 3: Cross multiply
    917,369.13x = 1,266,011.43 × 509,472.84
  4. Step 4: Simplify right side
    917,369.13x = 644,998,438,714.56
  5. Step 5: Solve for x
    x = 644,998,438,714.56/917,369.13
  6. Step 6: Final answer
    x = 703,095.86

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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.