Home / 687,012.40-1,030,518.60-610,904.80

Finding the Fourth Proportional to 687,012.40, 1,030,518.60 and 610,904.80

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Solution

The fourth proportional to 687,012.40, 1,030,518.60 and 610,904.80 is: 916,357.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,012.40 : 1,030,518.60 = 610,904.80 : x
  2. Step 2: Convert to fraction form
    687,012.40/1,030,518.60 = 610,904.80/x
  3. Step 3: Cross multiply
    687,012.40x = 1,030,518.60 × 610,904.80
  4. Step 4: Simplify right side
    687,012.40x = 629,548,759,229.28
  5. Step 5: Solve for x
    x = 629,548,759,229.28/687,012.40
  6. Step 6: Final answer
    x = 916,357.20

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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.