Home / 979,749.18-1,470,075.75-447,433.38

Finding the Fourth Proportional to 979,749.18, 1,470,075.75 and 447,433.38

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Solution

The fourth proportional to 979,749.18, 1,470,075.75 and 447,433.38 is: 671,356.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,749.18 : 1,470,075.75 = 447,433.38 : x
  2. Step 2: Convert to fraction form
    979,749.18/1,470,075.75 = 447,433.38/x
  3. Step 3: Cross multiply
    979,749.18x = 1,470,075.75 × 447,433.38
  4. Step 4: Simplify right side
    979,749.18x = 657,760,961,678.54
  5. Step 5: Solve for x
    x = 657,760,961,678.54/979,749.18
  6. Step 6: Final answer
    x = 671,356.48

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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.