Home / 972,419.80-1,458,629.70-856,946.20

Finding the Fourth Proportional to 972,419.80, 1,458,629.70 and 856,946.20

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Solution

The fourth proportional to 972,419.80, 1,458,629.70 and 856,946.20 is: 1,285,419.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,419.80 : 1,458,629.70 = 856,946.20 : x
  2. Step 2: Convert to fraction form
    972,419.80/1,458,629.70 = 856,946.20/x
  3. Step 3: Cross multiply
    972,419.80x = 1,458,629.70 × 856,946.20
  4. Step 4: Simplify right side
    972,419.80x = 1,249,967,178,622.14
  5. Step 5: Solve for x
    x = 1,249,967,178,622.14/972,419.80
  6. Step 6: Final answer
    x = 1,285,419.30

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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.