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Finding the Fourth Proportional to 1,124,664.40, 1,684,955.40 and 649,939.60

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Solution

The fourth proportional to 1,124,664.40, 1,684,955.40 and 649,939.60 is: 973,729.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,124,664.40 : 1,684,955.40 = 649,939.60 : x
  2. Step 2: Convert to fraction form
    1,124,664.40/1,684,955.40 = 649,939.60/x
  3. Step 3: Cross multiply
    1,124,664.40x = 1,684,955.40 × 649,939.60
  4. Step 4: Simplify right side
    1,124,664.40x = 1,095,119,238,693.84
  5. Step 5: Solve for x
    x = 1,095,119,238,693.84/1,124,664.40
  6. Step 6: Final answer
    x = 973,729.80

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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.