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Finding the Fourth Proportional to 698,952, 1,048,428.72 and 173,640

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Solution

The fourth proportional to 698,952, 1,048,428.72 and 173,640 is: 260,460.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,952 : 1,048,428.72 = 173,640 : x
  2. Step 2: Convert to fraction form
    698,952/1,048,428.72 = 173,640/x
  3. Step 3: Cross multiply
    698,952x = 1,048,428.72 × 173,640
  4. Step 4: Simplify right side
    698,952x = 182,049,162,940.80
  5. Step 5: Solve for x
    x = 182,049,162,940.80/698,952
  6. Step 6: Final answer
    x = 260,460.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.