Home / 1,089,069.90-1,502,701.23-659,390.01

Finding the Fourth Proportional to 1,089,069.90, 1,502,701.23 and 659,390.01

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Solution

The fourth proportional to 1,089,069.90, 1,502,701.23 and 659,390.01 is: 909,827.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089,069.90 : 1,502,701.23 = 659,390.01 : x
  2. Step 2: Convert to fraction form
    1,089,069.90/1,502,701.23 = 659,390.01/x
  3. Step 3: Cross multiply
    1,089,069.90x = 1,502,701.23 × 659,390.01
  4. Step 4: Simplify right side
    1,089,069.90x = 990,866,179,076.71
  5. Step 5: Solve for x
    x = 990,866,179,076.71/1,089,069.90
  6. Step 6: Final answer
    x = 909,827.90

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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.