Home / 804,598.40-1,207,675.20-405,689.60

Finding the Fourth Proportional to 804,598.40, 1,207,675.20 and 405,689.60

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Solution

The fourth proportional to 804,598.40, 1,207,675.20 and 405,689.60 is: 608,926.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,598.40 : 1,207,675.20 = 405,689.60 : x
  2. Step 2: Convert to fraction form
    804,598.40/1,207,675.20 = 405,689.60/x
  3. Step 3: Cross multiply
    804,598.40x = 1,207,675.20 × 405,689.60
  4. Step 4: Simplify right side
    804,598.40x = 489,941,268,817.92
  5. Step 5: Solve for x
    x = 489,941,268,817.92/804,598.40
  6. Step 6: Final answer
    x = 608,926.48

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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.