Home / 989,739.60-1,484,609.40-492,075.60

Finding the Fourth Proportional to 989,739.60, 1,484,609.40 and 492,075.60

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Solution

The fourth proportional to 989,739.60, 1,484,609.40 and 492,075.60 is: 738,113.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,739.60 : 1,484,609.40 = 492,075.60 : x
  2. Step 2: Convert to fraction form
    989,739.60/1,484,609.40 = 492,075.60/x
  3. Step 3: Cross multiply
    989,739.60x = 1,484,609.40 × 492,075.60
  4. Step 4: Simplify right side
    989,739.60x = 730,540,061,270.64
  5. Step 5: Solve for x
    x = 730,540,061,270.64/989,739.60
  6. Step 6: Final answer
    x = 738,113.40

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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.