Home / 776,890.80-1,165,336.20-461,703.60

Finding the Fourth Proportional to 776,890.80, 1,165,336.20 and 461,703.60

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Solution

The fourth proportional to 776,890.80, 1,165,336.20 and 461,703.60 is: 692,555.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,890.80 : 1,165,336.20 = 461,703.60 : x
  2. Step 2: Convert to fraction form
    776,890.80/1,165,336.20 = 461,703.60/x
  3. Step 3: Cross multiply
    776,890.80x = 1,165,336.20 × 461,703.60
  4. Step 4: Simplify right side
    776,890.80x = 538,039,918,750.32
  5. Step 5: Solve for x
    x = 538,039,918,750.32/776,890.80
  6. Step 6: Final answer
    x = 692,555.40

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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.