Home / 917,390.88-1,375,541.22-348,813.54

Finding the Fourth Proportional to 917,390.88, 1,375,541.22 and 348,813.54

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Solution

The fourth proportional to 917,390.88, 1,375,541.22 and 348,813.54 is: 523,013.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,390.88 : 1,375,541.22 = 348,813.54 : x
  2. Step 2: Convert to fraction form
    917,390.88/1,375,541.22 = 348,813.54/x
  3. Step 3: Cross multiply
    917,390.88x = 1,375,541.22 × 348,813.54
  4. Step 4: Simplify right side
    917,390.88x = 479,807,402,364.12
  5. Step 5: Solve for x
    x = 479,807,402,364.12/917,390.88
  6. Step 6: Final answer
    x = 523,013.05

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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.