Home / 1,341,985.48-1,851,990.90-769,136.20

Finding the Fourth Proportional to 1,341,985.48, 1,851,990.90 and 769,136.20

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Solution

The fourth proportional to 1,341,985.48, 1,851,990.90 and 769,136.20 is: 1,061,437.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,341,985.48 : 1,851,990.90 = 769,136.20 : x
  2. Step 2: Convert to fraction form
    1,341,985.48/1,851,990.90 = 769,136.20/x
  3. Step 3: Cross multiply
    1,341,985.48x = 1,851,990.90 × 769,136.20
  4. Step 4: Simplify right side
    1,341,985.48x = 1,424,433,243,260.58
  5. Step 5: Solve for x
    x = 1,424,433,243,260.58/1,341,985.48
  6. Step 6: Final answer
    x = 1,061,437.15

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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.