Home / 1,994,421.60-2,991,632.40-574,621.20

Finding the Fourth Proportional to 1,994,421.60, 2,991,632.40 and 574,621.20

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Solution

The fourth proportional to 1,994,421.60, 2,991,632.40 and 574,621.20 is: 861,931.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,994,421.60 : 2,991,632.40 = 574,621.20 : x
  2. Step 2: Convert to fraction form
    1,994,421.60/2,991,632.40 = 574,621.20/x
  3. Step 3: Cross multiply
    1,994,421.60x = 2,991,632.40 × 574,621.20
  4. Step 4: Simplify right side
    1,994,421.60x = 1,719,055,399,646.88
  5. Step 5: Solve for x
    x = 1,719,055,399,646.88/1,994,421.60
  6. Step 6: Final answer
    x = 861,931.80

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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.