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Finding the Fourth Proportional to 652,173.20, 978,259.80 and 403,341.20

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Solution

The fourth proportional to 652,173.20, 978,259.80 and 403,341.20 is: 605,011.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,173.20 : 978,259.80 = 403,341.20 : x
  2. Step 2: Convert to fraction form
    652,173.20/978,259.80 = 403,341.20/x
  3. Step 3: Cross multiply
    652,173.20x = 978,259.80 × 403,341.20
  4. Step 4: Simplify right side
    652,173.20x = 394,572,481,643.76
  5. Step 5: Solve for x
    x = 394,572,481,643.76/652,173.20
  6. Step 6: Final answer
    x = 605,011.80

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