Home / 917,690.14-1,376,535.21-356,855.86

Finding the Fourth Proportional to 917,690.14, 1,376,535.21 and 356,855.86

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Solution

The fourth proportional to 917,690.14, 1,376,535.21 and 356,855.86 is: 535,283.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,690.14 : 1,376,535.21 = 356,855.86 : x
  2. Step 2: Convert to fraction form
    917,690.14/1,376,535.21 = 356,855.86/x
  3. Step 3: Cross multiply
    917,690.14x = 1,376,535.21 × 356,855.86
  4. Step 4: Simplify right side
    917,690.14x = 491,224,656,184.83
  5. Step 5: Solve for x
    x = 491,224,656,184.83/917,690.14
  6. Step 6: Final answer
    x = 535,283.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.