Home / 1,405,988.74-1,940,254.32-761,393.98

Finding the Fourth Proportional to 1,405,988.74, 1,940,254.32 and 761,393.98

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Solution

The fourth proportional to 1,405,988.74, 1,940,254.32 and 761,393.98 is: 1,050,718.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,988.74 : 1,940,254.32 = 761,393.98 : x
  2. Step 2: Convert to fraction form
    1,405,988.74/1,940,254.32 = 761,393.98/x
  3. Step 3: Cross multiply
    1,405,988.74x = 1,940,254.32 × 761,393.98
  4. Step 4: Simplify right side
    1,405,988.74x = 1,477,297,958,916.99
  5. Step 5: Solve for x
    x = 1,477,297,958,916.99/1,405,988.74
  6. Step 6: Final answer
    x = 1,050,718.20

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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.