Home / 670,619.80-1,005,929.70-552,424.60

Finding the Fourth Proportional to 670,619.80, 1,005,929.70 and 552,424.60

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Solution

The fourth proportional to 670,619.80, 1,005,929.70 and 552,424.60 is: 828,636.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,619.80 : 1,005,929.70 = 552,424.60 : x
  2. Step 2: Convert to fraction form
    670,619.80/1,005,929.70 = 552,424.60/x
  3. Step 3: Cross multiply
    670,619.80x = 1,005,929.70 × 552,424.60
  4. Step 4: Simplify right side
    670,619.80x = 555,700,312,150.62
  5. Step 5: Solve for x
    x = 555,700,312,150.62/670,619.80
  6. Step 6: Final answer
    x = 828,636.90

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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.