Home / 905,698.89-1,249,893.05-497,832.28

Finding the Fourth Proportional to 905,698.89, 1,249,893.05 and 497,832.28

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Solution

The fourth proportional to 905,698.89, 1,249,893.05 and 497,832.28 is: 687,024.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,698.89 : 1,249,893.05 = 497,832.28 : x
  2. Step 2: Convert to fraction form
    905,698.89/1,249,893.05 = 497,832.28/x
  3. Step 3: Cross multiply
    905,698.89x = 1,249,893.05 × 497,832.28
  4. Step 4: Simplify right side
    905,698.89x = 622,237,105,424.22
  5. Step 5: Solve for x
    x = 622,237,105,424.22/905,698.89
  6. Step 6: Final answer
    x = 687,024.25

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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.