Home / 789,485.63-1,089,423.95-467,139.24

Finding the Fourth Proportional to 789,485.63, 1,089,423.95 and 467,139.24

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Solution

The fourth proportional to 789,485.63, 1,089,423.95 and 467,139.24 is: 644,612.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,485.63 : 1,089,423.95 = 467,139.24 : x
  2. Step 2: Convert to fraction form
    789,485.63/1,089,423.95 = 467,139.24/x
  3. Step 3: Cross multiply
    789,485.63x = 1,089,423.95 × 467,139.24
  4. Step 4: Simplify right side
    789,485.63x = 508,912,673,705.10
  5. Step 5: Solve for x
    x = 508,912,673,705.10/789,485.63
  6. Step 6: Final answer
    x = 644,612.97

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.