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Finding the Fourth Proportional to 652,274.40, 978,411.60 and 605,035.20

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Solution

The fourth proportional to 652,274.40, 978,411.60 and 605,035.20 is: 907,552.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,274.40 : 978,411.60 = 605,035.20 : x
  2. Step 2: Convert to fraction form
    652,274.40/978,411.60 = 605,035.20/x
  3. Step 3: Cross multiply
    652,274.40x = 978,411.60 × 605,035.20
  4. Step 4: Simplify right side
    652,274.40x = 591,973,458,088.32
  5. Step 5: Solve for x
    x = 591,973,458,088.32/652,274.40
  6. Step 6: Final answer
    x = 907,552.80

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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.