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Finding the Fourth Proportional to 644,653.98, 967,400.55 and 245,298.06

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Solution

The fourth proportional to 644,653.98, 967,400.55 and 245,298.06 is: 368,106.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,653.98 : 967,400.55 = 245,298.06 : x
  2. Step 2: Convert to fraction form
    644,653.98/967,400.55 = 245,298.06/x
  3. Step 3: Cross multiply
    644,653.98x = 967,400.55 × 245,298.06
  4. Step 4: Simplify right side
    644,653.98x = 237,301,478,157.93
  5. Step 5: Solve for x
    x = 237,301,478,157.93/644,653.98
  6. Step 6: Final answer
    x = 368,106.74

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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.