Home / 1,405,541.76-1,939,648.96-760,962.40

Finding the Fourth Proportional to 1,405,541.76, 1,939,648.96 and 760,962.40

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Solution

The fourth proportional to 1,405,541.76, 1,939,648.96 and 760,962.40 is: 1,050,128.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,541.76 : 1,939,648.96 = 760,962.40 : x
  2. Step 2: Convert to fraction form
    1,405,541.76/1,939,648.96 = 760,962.40/x
  3. Step 3: Cross multiply
    1,405,541.76x = 1,939,648.96 × 760,962.40
  4. Step 4: Simplify right side
    1,405,541.76x = 1,475,999,927,759.10
  5. Step 5: Solve for x
    x = 1,475,999,927,759.10/1,405,541.76
  6. Step 6: Final answer
    x = 1,050,128.83

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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.