Home / 1,306,459.07-1,959,687.82-407,977.79

Finding the Fourth Proportional to 1,306,459.07, 1,959,687.82 and 407,977.79

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Solution

The fourth proportional to 1,306,459.07, 1,959,687.82 and 407,977.79 is: 611,966.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,306,459.07 : 1,959,687.82 = 407,977.79 : x
  2. Step 2: Convert to fraction form
    1,306,459.07/1,959,687.82 = 407,977.79/x
  3. Step 3: Cross multiply
    1,306,459.07x = 1,959,687.82 × 407,977.79
  4. Step 4: Simplify right side
    1,306,459.07x = 799,509,095,075.13
  5. Step 5: Solve for x
    x = 799,509,095,075.13/1,306,459.07
  6. Step 6: Final answer
    x = 611,966.43

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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.