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Finding the Fourth Proportional to 644,050.89, 888,755.54 and 357,552.53

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Solution

The fourth proportional to 644,050.89, 888,755.54 and 357,552.53 is: 493,403.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,050.89 : 888,755.54 = 357,552.53 : x
  2. Step 2: Convert to fraction form
    644,050.89/888,755.54 = 357,552.53/x
  3. Step 3: Cross multiply
    644,050.89x = 888,755.54 × 357,552.53
  4. Step 4: Simplify right side
    644,050.89x = 317,776,788,979.81
  5. Step 5: Solve for x
    x = 317,776,788,979.81/644,050.89
  6. Step 6: Final answer
    x = 493,403.23

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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.