Home / 528,085.10-789,823.65-472,328.30

Finding the Fourth Proportional to 528,085.10, 789,823.65 and 472,328.30

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Solution

The fourth proportional to 528,085.10, 789,823.65 and 472,328.30 is: 706,431.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,085.10 : 789,823.65 = 472,328.30 : x
  2. Step 2: Convert to fraction form
    528,085.10/789,823.65 = 472,328.30/x
  3. Step 3: Cross multiply
    528,085.10x = 789,823.65 × 472,328.30
  4. Step 4: Simplify right side
    528,085.10x = 373,056,061,904.30
  5. Step 5: Solve for x
    x = 373,056,061,904.30/528,085.10
  6. Step 6: Final answer
    x = 706,431.71

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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.