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Finding the Fourth Proportional to 707,615.29, 976,509.17 and 385,325.29

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Solution

The fourth proportional to 707,615.29, 976,509.17 and 385,325.29 is: 531,748.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,615.29 : 976,509.17 = 385,325.29 : x
  2. Step 2: Convert to fraction form
    707,615.29/976,509.17 = 385,325.29/x
  3. Step 3: Cross multiply
    707,615.29x = 976,509.17 × 385,325.29
  4. Step 4: Simplify right side
    707,615.29x = 376,273,679,117.91
  5. Step 5: Solve for x
    x = 376,273,679,117.91/707,615.29
  6. Step 6: Final answer
    x = 531,748.94

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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.