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Finding the Fourth Proportional to 1,411,948.56, 1,948,504.04 and 767,368.80

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Solution

The fourth proportional to 1,411,948.56, 1,948,504.04 and 767,368.80 is: 1,058,977.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,411,948.56 : 1,948,504.04 = 767,368.80 : x
  2. Step 2: Convert to fraction form
    1,411,948.56/1,948,504.04 = 767,368.80/x
  3. Step 3: Cross multiply
    1,411,948.56x = 1,948,504.04 × 767,368.80
  4. Step 4: Simplify right side
    1,411,948.56x = 1,495,221,206,969.95
  5. Step 5: Solve for x
    x = 1,495,221,206,969.95/1,411,948.56
  6. Step 6: Final answer
    x = 1,058,977.11

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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.