Home / 1,408,135.47-2,111,269.96-509,460.26

Finding the Fourth Proportional to 1,408,135.47, 2,111,269.96 and 509,460.26

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Solution

The fourth proportional to 1,408,135.47, 2,111,269.96 and 509,460.26 is: 763,852.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,408,135.47 : 2,111,269.96 = 509,460.26 : x
  2. Step 2: Convert to fraction form
    1,408,135.47/2,111,269.96 = 509,460.26/x
  3. Step 3: Cross multiply
    1,408,135.47x = 2,111,269.96 × 509,460.26
  4. Step 4: Simplify right side
    1,408,135.47x = 1,075,608,142,751.79
  5. Step 5: Solve for x
    x = 1,075,608,142,751.79/1,408,135.47
  6. Step 6: Final answer
    x = 763,852.75

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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.