Home / 528,084.10-789,822.15-472,327.30

Finding the Fourth Proportional to 528,084.10, 789,822.15 and 472,327.30

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Solution

The fourth proportional to 528,084.10, 789,822.15 and 472,327.30 is: 706,430.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,084.10 : 789,822.15 = 472,327.30 : x
  2. Step 2: Convert to fraction form
    528,084.10/789,822.15 = 472,327.30/x
  3. Step 3: Cross multiply
    528,084.10x = 789,822.15 × 472,327.30
  4. Step 4: Simplify right side
    528,084.10x = 373,054,563,589.70
  5. Step 5: Solve for x
    x = 373,054,563,589.70/528,084.10
  6. Step 6: Final answer
    x = 706,430.21

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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.