Home / 699,602.40-1,049,403.60-419,666.40

Finding the Fourth Proportional to 699,602.40, 1,049,403.60 and 419,666.40

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Solution

The fourth proportional to 699,602.40, 1,049,403.60 and 419,666.40 is: 629,499.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,602.40 : 1,049,403.60 = 419,666.40 : x
  2. Step 2: Convert to fraction form
    699,602.40/1,049,403.60 = 419,666.40/x
  3. Step 3: Cross multiply
    699,602.40x = 1,049,403.60 × 419,666.40
  4. Step 4: Simplify right side
    699,602.40x = 440,399,430,959.04
  5. Step 5: Solve for x
    x = 440,399,430,959.04/699,602.40
  6. Step 6: Final answer
    x = 629,499.60

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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.