Home / 917,115.81-1,374,950.19-579,444.72

Finding the Fourth Proportional to 917,115.81, 1,374,950.19 and 579,444.72

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Solution

The fourth proportional to 917,115.81, 1,374,950.19 and 579,444.72 is: 868,709.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,115.81 : 1,374,950.19 = 579,444.72 : x
  2. Step 2: Convert to fraction form
    917,115.81/1,374,950.19 = 579,444.72/x
  3. Step 3: Cross multiply
    917,115.81x = 1,374,950.19 × 579,444.72
  4. Step 4: Simplify right side
    917,115.81x = 796,707,624,875.35
  5. Step 5: Solve for x
    x = 796,707,624,875.35/917,115.81
  6. Step 6: Final answer
    x = 868,709.95

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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.