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Finding the Fourth Proportional to 707,292.09, 976,085.10 and 385,023.67

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Solution

The fourth proportional to 707,292.09, 976,085.10 and 385,023.67 is: 531,344.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,292.09 : 976,085.10 = 385,023.67 : x
  2. Step 2: Convert to fraction form
    707,292.09/976,085.10 = 385,023.67/x
  3. Step 3: Cross multiply
    707,292.09x = 976,085.10 × 385,023.67
  4. Step 4: Simplify right side
    707,292.09x = 375,815,864,994.10
  5. Step 5: Solve for x
    x = 375,815,864,994.10/707,292.09
  6. Step 6: Final answer
    x = 531,344.65

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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.