Home / 2,870,356.40-4,299,629.70-1,972,811.60

Finding the Fourth Proportional to 2,870,356.40, 4,299,629.70 and 1,972,811.60

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Solution

The fourth proportional to 2,870,356.40, 4,299,629.70 and 1,972,811.60 is: 2,955,158.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,870,356.40 : 4,299,629.70 = 1,972,811.60 : x
  2. Step 2: Convert to fraction form
    2,870,356.40/4,299,629.70 = 1,972,811.60/x
  3. Step 3: Cross multiply
    2,870,356.40x = 4,299,629.70 × 1,972,811.60
  4. Step 4: Simplify right side
    2,870,356.40x = 8,482,359,347,864.52
  5. Step 5: Solve for x
    x = 8,482,359,347,864.52/2,870,356.40
  6. Step 6: Final answer
    x = 2,955,158.93

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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.