Home / 949,990.40-1,424,985.60-856,678.40

Finding the Fourth Proportional to 949,990.40, 1,424,985.60 and 856,678.40

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Solution

The fourth proportional to 949,990.40, 1,424,985.60 and 856,678.40 is: 1,285,017.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    949,990.40 : 1,424,985.60 = 856,678.40 : x
  2. Step 2: Convert to fraction form
    949,990.40/1,424,985.60 = 856,678.40/x
  3. Step 3: Cross multiply
    949,990.40x = 1,424,985.60 × 856,678.40
  4. Step 4: Simplify right side
    949,990.40x = 1,220,754,383,831.04
  5. Step 5: Solve for x
    x = 1,220,754,383,831.04/949,990.40
  6. Step 6: Final answer
    x = 1,285,017.60

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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.