Home / 690,439.82-952,787.63-384,516.11

Finding the Fourth Proportional to 690,439.82, 952,787.63 and 384,516.11

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Solution

The fourth proportional to 690,439.82, 952,787.63 and 384,516.11 is: 530,621.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,439.82 : 952,787.63 = 384,516.11 : x
  2. Step 2: Convert to fraction form
    690,439.82/952,787.63 = 384,516.11/x
  3. Step 3: Cross multiply
    690,439.82x = 952,787.63 × 384,516.11
  4. Step 4: Simplify right side
    690,439.82x = 366,362,196,486.98
  5. Step 5: Solve for x
    x = 366,362,196,486.98/690,439.82
  6. Step 6: Final answer
    x = 530,621.48

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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.