Home / 830,732.80-1,246,918.40-410,483.20

Finding the Fourth Proportional to 830,732.80, 1,246,918.40 and 410,483.20

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Solution

The fourth proportional to 830,732.80, 1,246,918.40 and 410,483.20 is: 616,129.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,732.80 : 1,246,918.40 = 410,483.20 : x
  2. Step 2: Convert to fraction form
    830,732.80/1,246,918.40 = 410,483.20/x
  3. Step 3: Cross multiply
    830,732.80x = 1,246,918.40 × 410,483.20
  4. Step 4: Simplify right side
    830,732.80x = 511,839,054,970.88
  5. Step 5: Solve for x
    x = 511,839,054,970.88/830,732.80
  6. Step 6: Final answer
    x = 616,129.58

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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.