Home / 989,754.60-1,484,631.90-492,090.60

Finding the Fourth Proportional to 989,754.60, 1,484,631.90 and 492,090.60

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Solution

The fourth proportional to 989,754.60, 1,484,631.90 and 492,090.60 is: 738,135.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,754.60 : 1,484,631.90 = 492,090.60 : x
  2. Step 2: Convert to fraction form
    989,754.60/1,484,631.90 = 492,090.60/x
  3. Step 3: Cross multiply
    989,754.60x = 1,484,631.90 × 492,090.60
  4. Step 4: Simplify right side
    989,754.60x = 730,573,402,450.14
  5. Step 5: Solve for x
    x = 730,573,402,450.14/989,754.60
  6. Step 6: Final answer
    x = 738,135.90

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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.