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Finding the Fourth Proportional to 637,215.84, 879,355.80 and 350,736.12

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Solution

The fourth proportional to 637,215.84, 879,355.80 and 350,736.12 is: 484,014.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,215.84 : 879,355.80 = 350,736.12 : x
  2. Step 2: Convert to fraction form
    637,215.84/879,355.80 = 350,736.12/x
  3. Step 3: Cross multiply
    637,215.84x = 879,355.80 × 350,736.12
  4. Step 4: Simplify right side
    637,215.84x = 308,421,841,391.50
  5. Step 5: Solve for x
    x = 308,421,841,391.50/637,215.84
  6. Step 6: Final answer
    x = 484,014.71

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1.5x scale

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.