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Finding the Fourth Proportional to 637,405.88, 954,087.06 and 356,070.20

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Solution

The fourth proportional to 637,405.88, 954,087.06 and 356,070.20 is: 532,975.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,405.88 : 954,087.06 = 356,070.20 : x
  2. Step 2: Convert to fraction form
    637,405.88/954,087.06 = 356,070.20/x
  3. Step 3: Cross multiply
    637,405.88x = 954,087.06 × 356,070.20
  4. Step 4: Simplify right side
    637,405.88x = 339,721,970,271.61
  5. Step 5: Solve for x
    x = 339,721,970,271.61/637,405.88
  6. Step 6: Final answer
    x = 532,975.90

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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.