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Finding the Fourth Proportional to 652,240.40, 978,360.60 and 494,776.40

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Solution

The fourth proportional to 652,240.40, 978,360.60 and 494,776.40 is: 742,164.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,240.40 : 978,360.60 = 494,776.40 : x
  2. Step 2: Convert to fraction form
    652,240.40/978,360.60 = 494,776.40/x
  3. Step 3: Cross multiply
    652,240.40x = 978,360.60 × 494,776.40
  4. Step 4: Simplify right side
    652,240.40x = 484,069,735,569.84
  5. Step 5: Solve for x
    x = 484,069,735,569.84/652,240.40
  6. Step 6: Final answer
    x = 742,164.60

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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.