Home / 917,933.74-1,376,900.40-286,847.56

Finding the Fourth Proportional to 917,933.74, 1,376,900.40 and 286,847.56

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Solution

The fourth proportional to 917,933.74, 1,376,900.40 and 286,847.56 is: 430,271.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,933.74 : 1,376,900.40 = 286,847.56 : x
  2. Step 2: Convert to fraction form
    917,933.74/1,376,900.40 = 286,847.56/x
  3. Step 3: Cross multiply
    917,933.74x = 1,376,900.40 × 286,847.56
  4. Step 4: Simplify right side
    917,933.74x = 394,960,520,103.02
  5. Step 5: Solve for x
    x = 394,960,520,103.02/917,933.74
  6. Step 6: Final answer
    x = 430,271.27

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1.5x scale

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.