Home / 1,178,871-1,768,651.52-380,136.48

Finding the Fourth Proportional to 1,178,871, 1,768,651.52 and 380,136.48

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Solution

The fourth proportional to 1,178,871, 1,768,651.52 and 380,136.48 is: 570,315.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,871 : 1,768,651.52 = 380,136.48 : x
  2. Step 2: Convert to fraction form
    1,178,871/1,768,651.52 = 380,136.48/x
  3. Step 3: Cross multiply
    1,178,871x = 1,768,651.52 × 380,136.48
  4. Step 4: Simplify right side
    1,178,871x = 672,328,963,159.45
  5. Step 5: Solve for x
    x = 672,328,963,159.45/1,178,871
  6. Step 6: Final answer
    x = 570,315.97

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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.