Home / 920,880.59-1,270,853.50-512,982.32

Finding the Fourth Proportional to 920,880.59, 1,270,853.50 and 512,982.32

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Solution

The fourth proportional to 920,880.59, 1,270,853.50 and 512,982.32 is: 707,936.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,880.59 : 1,270,853.50 = 512,982.32 : x
  2. Step 2: Convert to fraction form
    920,880.59/1,270,853.50 = 512,982.32/x
  3. Step 3: Cross multiply
    920,880.59x = 1,270,853.50 × 512,982.32
  4. Step 4: Simplify right side
    920,880.59x = 651,925,380,858.07
  5. Step 5: Solve for x
    x = 651,925,380,858.07/920,880.59
  6. Step 6: Final answer
    x = 707,936.94

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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.