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Finding the Fourth Proportional to 652,774.71, 978,488.40 and 273,915.45

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Solution

The fourth proportional to 652,774.71, 978,488.40 and 273,915.45 is: 410,590.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,774.71 : 978,488.40 = 273,915.45 : x
  2. Step 2: Convert to fraction form
    652,774.71/978,488.40 = 273,915.45/x
  3. Step 3: Cross multiply
    652,774.71x = 978,488.40 × 273,915.45
  4. Step 4: Simplify right side
    652,774.71x = 268,023,090,405.78
  5. Step 5: Solve for x
    x = 268,023,090,405.78/652,774.71
  6. Step 6: Final answer
    x = 410,590.49

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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.