Home / 1,405,985.60-1,940,256.24-761,405.60

Finding the Fourth Proportional to 1,405,985.60, 1,940,256.24 and 761,405.60

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Solution

The fourth proportional to 1,405,985.60, 1,940,256.24 and 761,405.60 is: 1,050,737.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,985.60 : 1,940,256.24 = 761,405.60 : x
  2. Step 2: Convert to fraction form
    1,405,985.60/1,940,256.24 = 761,405.60/x
  3. Step 3: Cross multiply
    1,405,985.60x = 1,940,256.24 × 761,405.60
  4. Step 4: Simplify right side
    1,405,985.60x = 1,477,321,966,570.94
  5. Step 5: Solve for x
    x = 1,477,321,966,570.94/1,405,985.60
  6. Step 6: Final answer
    x = 1,050,737.62

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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.