Home / 1,424,808.21-1,966,176.27-780,217.30

Finding the Fourth Proportional to 1,424,808.21, 1,966,176.27 and 780,217.30

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Solution

The fourth proportional to 1,424,808.21, 1,966,176.27 and 780,217.30 is: 1,076,667.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424,808.21 : 1,966,176.27 = 780,217.30 : x
  2. Step 2: Convert to fraction form
    1,424,808.21/1,966,176.27 = 780,217.30/x
  3. Step 3: Cross multiply
    1,424,808.21x = 1,966,176.27 × 780,217.30
  4. Step 4: Simplify right side
    1,424,808.21x = 1,534,044,740,703.47
  5. Step 5: Solve for x
    x = 1,534,044,740,703.47/1,424,808.21
  6. Step 6: Final answer
    x = 1,076,667.53

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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.