Home / 989,923.18-1,485,045.60-306,650.47

Finding the Fourth Proportional to 989,923.18, 1,485,045.60 and 306,650.47

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Solution

The fourth proportional to 989,923.18, 1,485,045.60 and 306,650.47 is: 460,025.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,923.18 : 1,485,045.60 = 306,650.47 : x
  2. Step 2: Convert to fraction form
    989,923.18/1,485,045.60 = 306,650.47/x
  3. Step 3: Cross multiply
    989,923.18x = 1,485,045.60 × 306,650.47
  4. Step 4: Simplify right side
    989,923.18x = 455,389,931,211.43
  5. Step 5: Solve for x
    x = 455,389,931,211.43/989,923.18
  6. Step 6: Final answer
    x = 460,025.53

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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.