Home / 830,534.72-1,245,905.96-325,030.40

Finding the Fourth Proportional to 830,534.72, 1,245,905.96 and 325,030.40

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Solution

The fourth proportional to 830,534.72, 1,245,905.96 and 325,030.40 is: 487,586.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,534.72 : 1,245,905.96 = 325,030.40 : x
  2. Step 2: Convert to fraction form
    830,534.72/1,245,905.96 = 325,030.40/x
  3. Step 3: Cross multiply
    830,534.72x = 1,245,905.96 × 325,030.40
  4. Step 4: Simplify right side
    830,534.72x = 404,957,304,686.50
  5. Step 5: Solve for x
    x = 404,957,304,686.50/830,534.72
  6. Step 6: Final answer
    x = 487,586.25

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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.