Home / 1,292,107.19-1,938,012.48-345,551.72

Finding the Fourth Proportional to 1,292,107.19, 1,938,012.48 and 345,551.72

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Solution

The fourth proportional to 1,292,107.19, 1,938,012.48 and 345,551.72 is: 518,287.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,107.19 : 1,938,012.48 = 345,551.72 : x
  2. Step 2: Convert to fraction form
    1,292,107.19/1,938,012.48 = 345,551.72/x
  3. Step 3: Cross multiply
    1,292,107.19x = 1,938,012.48 × 345,551.72
  4. Step 4: Simplify right side
    1,292,107.19x = 669,683,536,155.40
  5. Step 5: Solve for x
    x = 669,683,536,155.40/1,292,107.19
  6. Step 6: Final answer
    x = 518,287.91

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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.