Home / 1,352,931.49-2,029,143.51-678,831.80

Finding the Fourth Proportional to 1,352,931.49, 2,029,143.51 and 678,831.80

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Solution

The fourth proportional to 1,352,931.49, 2,029,143.51 and 678,831.80 is: 1,018,120.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,352,931.49 : 2,029,143.51 = 678,831.80 : x
  2. Step 2: Convert to fraction form
    1,352,931.49/2,029,143.51 = 678,831.80/x
  3. Step 3: Cross multiply
    1,352,931.49x = 2,029,143.51 × 678,831.80
  4. Step 4: Simplify right side
    1,352,931.49x = 1,377,447,131,205.90
  5. Step 5: Solve for x
    x = 1,377,447,131,205.90/1,352,931.49
  6. Step 6: Final answer
    x = 1,018,120.39

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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.