Home / 1,128,009.40-1,692,014.10-960,047.80

Finding the Fourth Proportional to 1,128,009.40, 1,692,014.10 and 960,047.80

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Solution

The fourth proportional to 1,128,009.40, 1,692,014.10 and 960,047.80 is: 1,440,071.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,009.40 : 1,692,014.10 = 960,047.80 : x
  2. Step 2: Convert to fraction form
    1,128,009.40/1,692,014.10 = 960,047.80/x
  3. Step 3: Cross multiply
    1,128,009.40x = 1,692,014.10 × 960,047.80
  4. Step 4: Simplify right side
    1,128,009.40x = 1,624,414,414,273.98
  5. Step 5: Solve for x
    x = 1,624,414,414,273.98/1,128,009.40
  6. Step 6: Final answer
    x = 1,440,071.70

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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.