Home / 920,073.17-1,269,611.93-678,485.81

Finding the Fourth Proportional to 920,073.17, 1,269,611.93 and 678,485.81

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Solution

The fourth proportional to 920,073.17, 1,269,611.93 and 678,485.81 is: 936,244.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,073.17 : 1,269,611.93 = 678,485.81 : x
  2. Step 2: Convert to fraction form
    920,073.17/1,269,611.93 = 678,485.81/x
  3. Step 3: Cross multiply
    920,073.17x = 1,269,611.93 × 678,485.81
  4. Step 4: Simplify right side
    920,073.17x = 861,413,678,711.71
  5. Step 5: Solve for x
    x = 861,413,678,711.71/920,073.17
  6. Step 6: Final answer
    x = 936,244.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.