Home / 830,366.40-1,245,484.80-324,829.20

Finding the Fourth Proportional to 830,366.40, 1,245,484.80 and 324,829.20

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Solution

The fourth proportional to 830,366.40, 1,245,484.80 and 324,829.20 is: 487,218.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,366.40 : 1,245,484.80 = 324,829.20 : x
  2. Step 2: Convert to fraction form
    830,366.40/1,245,484.80 = 324,829.20/x
  3. Step 3: Cross multiply
    830,366.40x = 1,245,484.80 × 324,829.20
  4. Step 4: Simplify right side
    830,366.40x = 404,569,831,196.16
  5. Step 5: Solve for x
    x = 404,569,831,196.16/830,366.40
  6. Step 6: Final answer
    x = 487,218.45

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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.