Home / 790,943.18-1,091,500.64-428,366.82

Finding the Fourth Proportional to 790,943.18, 1,091,500.64 and 428,366.82

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Solution

The fourth proportional to 790,943.18, 1,091,500.64 and 428,366.82 is: 591,145.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,943.18 : 1,091,500.64 = 428,366.82 : x
  2. Step 2: Convert to fraction form
    790,943.18/1,091,500.64 = 428,366.82/x
  3. Step 3: Cross multiply
    790,943.18x = 1,091,500.64 × 428,366.82
  4. Step 4: Simplify right side
    790,943.18x = 467,562,658,184.77
  5. Step 5: Solve for x
    x = 467,562,658,184.77/790,943.18
  6. Step 6: Final answer
    x = 591,145.70

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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.