Home / 1,405,387.40-1,939,435.24-760,807.58

Finding the Fourth Proportional to 1,405,387.40, 1,939,435.24 and 760,807.58

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Solution

The fourth proportional to 1,405,387.40, 1,939,435.24 and 760,807.58 is: 1,049,914.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,387.40 : 1,939,435.24 = 760,807.58 : x
  2. Step 2: Convert to fraction form
    1,405,387.40/1,939,435.24 = 760,807.58/x
  3. Step 3: Cross multiply
    1,405,387.40x = 1,939,435.24 × 760,807.58
  4. Step 4: Simplify right side
    1,405,387.40x = 1,475,537,031,511.12
  5. Step 5: Solve for x
    x = 1,475,537,031,511.12/1,405,387.40
  6. Step 6: Final answer
    x = 1,049,914.80

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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.