Home / 830,688.40-1,245,967.80-325,151.20

Finding the Fourth Proportional to 830,688.40, 1,245,967.80 and 325,151.20

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Solution

The fourth proportional to 830,688.40, 1,245,967.80 and 325,151.20 is: 487,701.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,688.40 : 1,245,967.80 = 325,151.20 : x
  2. Step 2: Convert to fraction form
    830,688.40/1,245,967.80 = 325,151.20/x
  3. Step 3: Cross multiply
    830,688.40x = 1,245,967.80 × 325,151.20
  4. Step 4: Simplify right side
    830,688.40x = 405,127,925,331.36
  5. Step 5: Solve for x
    x = 405,127,925,331.36/830,688.40
  6. Step 6: Final answer
    x = 487,701.44

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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.