Home / 714,911-1,072,039.46-426,853.38

Finding the Fourth Proportional to 714,911, 1,072,039.46 and 426,853.38

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Solution

The fourth proportional to 714,911, 1,072,039.46 and 426,853.38 is: 640,084.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,911 : 1,072,039.46 = 426,853.38 : x
  2. Step 2: Convert to fraction form
    714,911/1,072,039.46 = 426,853.38/x
  3. Step 3: Cross multiply
    714,911x = 1,072,039.46 × 426,853.38
  4. Step 4: Simplify right side
    714,911x = 457,603,666,994.38
  5. Step 5: Solve for x
    x = 457,603,666,994.38/714,911
  6. Step 6: Final answer
    x = 640,084.80

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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.