Home / 1,939,638.32-2,909,699.02-660,147.47

Finding the Fourth Proportional to 1,939,638.32, 2,909,699.02 and 660,147.47

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Solution

The fourth proportional to 1,939,638.32, 2,909,699.02 and 660,147.47 is: 990,303.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939,638.32 : 2,909,699.02 = 660,147.47 : x
  2. Step 2: Convert to fraction form
    1,939,638.32/2,909,699.02 = 660,147.47/x
  3. Step 3: Cross multiply
    1,939,638.32x = 2,909,699.02 × 660,147.47
  4. Step 4: Simplify right side
    1,939,638.32x = 1,920,830,446,514.48
  5. Step 5: Solve for x
    x = 1,920,830,446,514.48/1,939,638.32
  6. Step 6: Final answer
    x = 990,303.41

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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.