Home / 865,323.20-1,297,984.80-492,075.20

Finding the Fourth Proportional to 865,323.20, 1,297,984.80 and 492,075.20

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Solution

The fourth proportional to 865,323.20, 1,297,984.80 and 492,075.20 is: 738,112.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,323.20 : 1,297,984.80 = 492,075.20 : x
  2. Step 2: Convert to fraction form
    865,323.20/1,297,984.80 = 492,075.20/x
  3. Step 3: Cross multiply
    865,323.20x = 1,297,984.80 × 492,075.20
  4. Step 4: Simplify right side
    865,323.20x = 638,706,130,056.96
  5. Step 5: Solve for x
    x = 638,706,130,056.96/865,323.20
  6. Step 6: Final answer
    x = 738,112.80

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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.