Home / 920,311.60-1,373,075.09-819,272.20

Finding the Fourth Proportional to 920,311.60, 1,373,075.09 and 819,272.20

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Solution

The fourth proportional to 920,311.60, 1,373,075.09 and 819,272.20 is: 1,222,327.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,311.60 : 1,373,075.09 = 819,272.20 : x
  2. Step 2: Convert to fraction form
    920,311.60/1,373,075.09 = 819,272.20/x
  3. Step 3: Cross multiply
    920,311.60x = 1,373,075.09 × 819,272.20
  4. Step 4: Simplify right side
    920,311.60x = 1,124,922,249,749.50
  5. Step 5: Solve for x
    x = 1,124,922,249,749.50/920,311.60
  6. Step 6: Final answer
    x = 1,222,327.58

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.