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Finding the Fourth Proportional to 707,234.40, 976,004.08 and 384,965.28

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Solution

The fourth proportional to 707,234.40, 976,004.08 and 384,965.28 is: 531,263.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,234.40 : 976,004.08 = 384,965.28 : x
  2. Step 2: Convert to fraction form
    707,234.40/976,004.08 = 384,965.28/x
  3. Step 3: Cross multiply
    707,234.40x = 976,004.08 × 384,965.28
  4. Step 4: Simplify right side
    707,234.40x = 375,727,683,938.34
  5. Step 5: Solve for x
    x = 375,727,683,938.34/707,234.40
  6. Step 6: Final answer
    x = 531,263.30

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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.