Home / 1,211,075.52-1,671,262.56-674,520

Finding the Fourth Proportional to 1,211,075.52, 1,671,262.56 and 674,520

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Solution

The fourth proportional to 1,211,075.52, 1,671,262.56 and 674,520 is: 930,825.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,075.52 : 1,671,262.56 = 674,520 : x
  2. Step 2: Convert to fraction form
    1,211,075.52/1,671,262.56 = 674,520/x
  3. Step 3: Cross multiply
    1,211,075.52x = 1,671,262.56 × 674,520
  4. Step 4: Simplify right side
    1,211,075.52x = 1,127,300,021,971.20
  5. Step 5: Solve for x
    x = 1,127,300,021,971.20/1,211,075.52
  6. Step 6: Final answer
    x = 930,825.54

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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.