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Finding the Fourth Proportional to 707,890.41, 976,883.76 and 385,599.51

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Solution

The fourth proportional to 707,890.41, 976,883.76 and 385,599.51 is: 532,124.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,890.41 : 976,883.76 = 385,599.51 : x
  2. Step 2: Convert to fraction form
    707,890.41/976,883.76 = 385,599.51/x
  3. Step 3: Cross multiply
    707,890.41x = 976,883.76 × 385,599.51
  4. Step 4: Simplify right side
    707,890.41x = 376,685,899,182.96
  5. Step 5: Solve for x
    x = 376,685,899,182.96/707,890.41
  6. Step 6: Final answer
    x = 532,124.60

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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.