Home / 692,677.40-1,039,016.10-660,200.45

Finding the Fourth Proportional to 692,677.40, 1,039,016.10 and 660,200.45

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Solution

The fourth proportional to 692,677.40, 1,039,016.10 and 660,200.45 is: 990,300.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,677.40 : 1,039,016.10 = 660,200.45 : x
  2. Step 2: Convert to fraction form
    692,677.40/1,039,016.10 = 660,200.45/x
  3. Step 3: Cross multiply
    692,677.40x = 1,039,016.10 × 660,200.45
  4. Step 4: Simplify right side
    692,677.40x = 685,958,896,777.25
  5. Step 5: Solve for x
    x = 685,958,896,777.25/692,677.40
  6. Step 6: Final answer
    x = 990,300.68

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Double scale
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Similar ratio
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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.