Home / 1,161,051.25-1,602,303.90-644,807.50

Finding the Fourth Proportional to 1,161,051.25, 1,602,303.90 and 644,807.50

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Solution

The fourth proportional to 1,161,051.25, 1,602,303.90 and 644,807.50 is: 889,863.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,161,051.25 : 1,602,303.90 = 644,807.50 : x
  2. Step 2: Convert to fraction form
    1,161,051.25/1,602,303.90 = 644,807.50/x
  3. Step 3: Cross multiply
    1,161,051.25x = 1,602,303.90 × 644,807.50
  4. Step 4: Simplify right side
    1,161,051.25x = 1,033,177,571,999.25
  5. Step 5: Solve for x
    x = 1,033,177,571,999.25/1,161,051.25
  6. Step 6: Final answer
    x = 889,863.88

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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.