Home / 1,049,374.40-1,574,839.20-418,740.80

Finding the Fourth Proportional to 1,049,374.40, 1,574,839.20 and 418,740.80

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Solution

The fourth proportional to 1,049,374.40, 1,574,839.20 and 418,740.80 is: 628,421.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,049,374.40 : 1,574,839.20 = 418,740.80 : x
  2. Step 2: Convert to fraction form
    1,049,374.40/1,574,839.20 = 418,740.80/x
  3. Step 3: Cross multiply
    1,049,374.40x = 1,574,839.20 × 418,740.80
  4. Step 4: Simplify right side
    1,049,374.40x = 659,449,426,479.36
  5. Step 5: Solve for x
    x = 659,449,426,479.36/1,049,374.40
  6. Step 6: Final answer
    x = 628,421.49

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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.