Home / 989,923.18-1,485,045.60-306,650.48

Finding the Fourth Proportional to 989,923.18, 1,485,045.60 and 306,650.48

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Solution

The fourth proportional to 989,923.18, 1,485,045.60 and 306,650.48 is: 460,025.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,923.18 : 1,485,045.60 = 306,650.48 : x
  2. Step 2: Convert to fraction form
    989,923.18/1,485,045.60 = 306,650.48/x
  3. Step 3: Cross multiply
    989,923.18x = 1,485,045.60 × 306,650.48
  4. Step 4: Simplify right side
    989,923.18x = 455,389,946,061.89
  5. Step 5: Solve for x
    x = 455,389,946,061.89/989,923.18
  6. Step 6: Final answer
    x = 460,025.54

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1.5x scale

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.