Home / 830,868.40-1,246,237.80-325,331.20

Finding the Fourth Proportional to 830,868.40, 1,246,237.80 and 325,331.20

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Solution

The fourth proportional to 830,868.40, 1,246,237.80 and 325,331.20 is: 487,971.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,868.40 : 1,246,237.80 = 325,331.20 : x
  2. Step 2: Convert to fraction form
    830,868.40/1,246,237.80 = 325,331.20/x
  3. Step 3: Cross multiply
    830,868.40x = 1,246,237.80 × 325,331.20
  4. Step 4: Simplify right side
    830,868.40x = 405,440,038,959.36
  5. Step 5: Solve for x
    x = 405,440,038,959.36/830,868.40
  6. Step 6: Final answer
    x = 487,971.43

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1.5x scale

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.