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Finding the Fourth Proportional to 654,653.95, 903,316.86 and 368,156.95

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Solution

The fourth proportional to 654,653.95, 903,316.86 and 368,156.95 is: 507,997.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,653.95 : 903,316.86 = 368,156.95 : x
  2. Step 2: Convert to fraction form
    654,653.95/903,316.86 = 368,156.95/x
  3. Step 3: Cross multiply
    654,653.95x = 903,316.86 × 368,156.95
  4. Step 4: Simplify right side
    654,653.95x = 332,562,377,802.89
  5. Step 5: Solve for x
    x = 332,562,377,802.89/654,653.95
  6. Step 6: Final answer
    x = 507,997.21

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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.