Home / 869,404.20-1,304,106.30-629,903.40

Finding the Fourth Proportional to 869,404.20, 1,304,106.30 and 629,903.40

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Solution

The fourth proportional to 869,404.20, 1,304,106.30 and 629,903.40 is: 944,855.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,404.20 : 1,304,106.30 = 629,903.40 : x
  2. Step 2: Convert to fraction form
    869,404.20/1,304,106.30 = 629,903.40/x
  3. Step 3: Cross multiply
    869,404.20x = 1,304,106.30 × 629,903.40
  4. Step 4: Simplify right side
    869,404.20x = 821,460,992,331.42
  5. Step 5: Solve for x
    x = 821,460,992,331.42/869,404.20
  6. Step 6: Final answer
    x = 944,855.10

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1.5x scale

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.