Home / 875,059.20-1,312,588.80-821,915.10

Finding the Fourth Proportional to 875,059.20, 1,312,588.80 and 821,915.10

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Solution

The fourth proportional to 875,059.20, 1,312,588.80 and 821,915.10 is: 1,232,872.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,059.20 : 1,312,588.80 = 821,915.10 : x
  2. Step 2: Convert to fraction form
    875,059.20/1,312,588.80 = 821,915.10/x
  3. Step 3: Cross multiply
    875,059.20x = 1,312,588.80 × 821,915.10
  4. Step 4: Simplify right side
    875,059.20x = 1,078,836,554,810.88
  5. Step 5: Solve for x
    x = 1,078,836,554,810.88/875,059.20
  6. Step 6: Final answer
    x = 1,232,872.65

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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.