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Finding the Fourth Proportional to 707,487.23, 976,939.22 and 684,609.47

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Solution

The fourth proportional to 707,487.23, 976,939.22 and 684,609.47 is: 945,348.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,487.23 : 976,939.22 = 684,609.47 : x
  2. Step 2: Convert to fraction form
    707,487.23/976,939.22 = 684,609.47/x
  3. Step 3: Cross multiply
    707,487.23x = 976,939.22 × 684,609.47
  4. Step 4: Simplify right side
    707,487.23x = 668,821,833,318.67
  5. Step 5: Solve for x
    x = 668,821,833,318.67/707,487.23
  6. Step 6: Final answer
    x = 945,348.28

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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.