Home / 1,278,855.32-1,916,999.94-436,831.16

Finding the Fourth Proportional to 1,278,855.32, 1,916,999.94 and 436,831.16

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Solution

The fourth proportional to 1,278,855.32, 1,916,999.94 and 436,831.16 is: 654,808.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,855.32 : 1,916,999.94 = 436,831.16 : x
  2. Step 2: Convert to fraction form
    1,278,855.32/1,916,999.94 = 436,831.16/x
  3. Step 3: Cross multiply
    1,278,855.32x = 1,916,999.94 × 436,831.16
  4. Step 4: Simplify right side
    1,278,855.32x = 837,405,307,510.13
  5. Step 5: Solve for x
    x = 837,405,307,510.13/1,278,855.32
  6. Step 6: Final answer
    x = 654,808.48

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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.