Home / 690,521.56-952,916.81-384,601.57

Finding the Fourth Proportional to 690,521.56, 952,916.81 and 384,601.57

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Solution

The fourth proportional to 690,521.56, 952,916.81 and 384,601.57 is: 530,748.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,521.56 : 952,916.81 = 384,601.57 : x
  2. Step 2: Convert to fraction form
    690,521.56/952,916.81 = 384,601.57/x
  3. Step 3: Cross multiply
    690,521.56x = 952,916.81 × 384,601.57
  4. Step 4: Simplify right side
    690,521.56x = 366,493,296,900.09
  5. Step 5: Solve for x
    x = 366,493,296,900.09/690,521.56
  6. Step 6: Final answer
    x = 530,748.52

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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.