Home / 905,722.41-1,249,870.67-518,524.89

Finding the Fourth Proportional to 905,722.41, 1,249,870.67 and 518,524.89

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Solution

The fourth proportional to 905,722.41, 1,249,870.67 and 518,524.89 is: 715,549.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,722.41 : 1,249,870.67 = 518,524.89 : x
  2. Step 2: Convert to fraction form
    905,722.41/1,249,870.67 = 518,524.89/x
  3. Step 3: Cross multiply
    905,722.41x = 1,249,870.67 × 518,524.89
  4. Step 4: Simplify right side
    905,722.41x = 648,089,049,083.35
  5. Step 5: Solve for x
    x = 648,089,049,083.35/905,722.41
  6. Step 6: Final answer
    x = 715,549.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.