Home / 989,191.02-1,483,784.19-649,776.90

Finding the Fourth Proportional to 989,191.02, 1,483,784.19 and 649,776.90

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Solution

The fourth proportional to 989,191.02, 1,483,784.19 and 649,776.90 is: 974,663.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,191.02 : 1,483,784.19 = 649,776.90 : x
  2. Step 2: Convert to fraction form
    989,191.02/1,483,784.19 = 649,776.90/x
  3. Step 3: Cross multiply
    989,191.02x = 1,483,784.19 × 649,776.90
  4. Step 4: Simplify right side
    989,191.02x = 964,128,691,247.21
  5. Step 5: Solve for x
    x = 964,128,691,247.21/989,191.02
  6. Step 6: Final answer
    x = 974,663.81

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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.