Home / 919,480.14-1,380,054.51-470,511.18

Finding the Fourth Proportional to 919,480.14, 1,380,054.51 and 470,511.18

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Solution

The fourth proportional to 919,480.14, 1,380,054.51 and 470,511.18 is: 706,193.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,480.14 : 1,380,054.51 = 470,511.18 : x
  2. Step 2: Convert to fraction form
    919,480.14/1,380,054.51 = 470,511.18/x
  3. Step 3: Cross multiply
    919,480.14x = 1,380,054.51 × 470,511.18
  4. Step 4: Simplify right side
    919,480.14x = 649,331,075,964.42
  5. Step 5: Solve for x
    x = 649,331,075,964.42/919,480.14
  6. Step 6: Final answer
    x = 706,193.69

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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.