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Finding the Fourth Proportional to 528,080.10, 789,816.15 and 472,323.30

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Solution

The fourth proportional to 528,080.10, 789,816.15 and 472,323.30 is: 706,424.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,080.10 : 789,816.15 = 472,323.30 : x
  2. Step 2: Convert to fraction form
    528,080.10/789,816.15 = 472,323.30/x
  3. Step 3: Cross multiply
    528,080.10x = 789,816.15 × 472,323.30
  4. Step 4: Simplify right side
    528,080.10x = 373,048,570,361.30
  5. Step 5: Solve for x
    x = 373,048,570,361.30/528,080.10
  6. Step 6: Final answer
    x = 706,424.22

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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.