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Finding the Fourth Proportional to 1,348,791, 1,861,385.04 and 775,830.48

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Solution

The fourth proportional to 1,348,791, 1,861,385.04 and 775,830.48 is: 1,070,676.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,348,791 : 1,861,385.04 = 775,830.48 : x
  2. Step 2: Convert to fraction form
    1,348,791/1,861,385.04 = 775,830.48/x
  3. Step 3: Cross multiply
    1,348,791x = 1,861,385.04 × 775,830.48
  4. Step 4: Simplify right side
    1,348,791x = 1,444,119,249,048.02
  5. Step 5: Solve for x
    x = 1,444,119,249,048.02/1,348,791
  6. Step 6: Final answer
    x = 1,070,676.81

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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.