Home / 711,342.40-1,067,013.60-290,401.60

Finding the Fourth Proportional to 711,342.40, 1,067,013.60 and 290,401.60

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Solution

The fourth proportional to 711,342.40, 1,067,013.60 and 290,401.60 is: 435,602.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,342.40 : 1,067,013.60 = 290,401.60 : x
  2. Step 2: Convert to fraction form
    711,342.40/1,067,013.60 = 290,401.60/x
  3. Step 3: Cross multiply
    711,342.40x = 1,067,013.60 × 290,401.60
  4. Step 4: Simplify right side
    711,342.40x = 309,862,456,661.76
  5. Step 5: Solve for x
    x = 309,862,456,661.76/711,342.40
  6. Step 6: Final answer
    x = 435,602.40

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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.