Home / 876,784.20-1,315,307.70-371,344.20

Finding the Fourth Proportional to 876,784.20, 1,315,307.70 and 371,344.20

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Solution

The fourth proportional to 876,784.20, 1,315,307.70 and 371,344.20 is: 557,071.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,784.20 : 1,315,307.70 = 371,344.20 : x
  2. Step 2: Convert to fraction form
    876,784.20/1,315,307.70 = 371,344.20/x
  3. Step 3: Cross multiply
    876,784.20x = 1,315,307.70 × 371,344.20
  4. Step 4: Simplify right side
    876,784.20x = 488,431,885,610.34
  5. Step 5: Solve for x
    x = 488,431,885,610.34/876,784.20
  6. Step 6: Final answer
    x = 557,071.95

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1.5x scale

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.