Home / 788,430.60-1,182,645.90-780,136.20

Finding the Fourth Proportional to 788,430.60, 1,182,645.90 and 780,136.20

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Solution

The fourth proportional to 788,430.60, 1,182,645.90 and 780,136.20 is: 1,170,204.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,430.60 : 1,182,645.90 = 780,136.20 : x
  2. Step 2: Convert to fraction form
    788,430.60/1,182,645.90 = 780,136.20/x
  3. Step 3: Cross multiply
    788,430.60x = 1,182,645.90 × 780,136.20
  4. Step 4: Simplify right side
    788,430.60x = 922,624,878,371.58
  5. Step 5: Solve for x
    x = 922,624,878,371.58/788,430.60
  6. Step 6: Final answer
    x = 1,170,204.30

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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.