Home / 1,277,157.84-1,915,884.98-424,305.60

Finding the Fourth Proportional to 1,277,157.84, 1,915,884.98 and 424,305.60

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Solution

The fourth proportional to 1,277,157.84, 1,915,884.98 and 424,305.60 is: 636,507.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,157.84 : 1,915,884.98 = 424,305.60 : x
  2. Step 2: Convert to fraction form
    1,277,157.84/1,915,884.98 = 424,305.60/x
  3. Step 3: Cross multiply
    1,277,157.84x = 1,915,884.98 × 424,305.60
  4. Step 4: Simplify right side
    1,277,157.84x = 812,920,725,969.89
  5. Step 5: Solve for x
    x = 812,920,725,969.89/1,277,157.84
  6. Step 6: Final answer
    x = 636,507.64

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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.