Home / 1,103,485.96-1,522,762.05-644,643.01

Finding the Fourth Proportional to 1,103,485.96, 1,522,762.05 and 644,643.01

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Solution

The fourth proportional to 1,103,485.96, 1,522,762.05 and 644,643.01 is: 889,578.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,103,485.96 : 1,522,762.05 = 644,643.01 : x
  2. Step 2: Convert to fraction form
    1,103,485.96/1,522,762.05 = 644,643.01/x
  3. Step 3: Cross multiply
    1,103,485.96x = 1,522,762.05 × 644,643.01
  4. Step 4: Simplify right side
    1,103,485.96x = 981,637,911,425.77
  5. Step 5: Solve for x
    x = 981,637,911,425.77/1,103,485.96
  6. Step 6: Final answer
    x = 889,578.98

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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.