Home / 788,576.40-1,182,864.60-256,114.80

Finding the Fourth Proportional to 788,576.40, 1,182,864.60 and 256,114.80

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Solution

The fourth proportional to 788,576.40, 1,182,864.60 and 256,114.80 is: 384,172.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,576.40 : 1,182,864.60 = 256,114.80 : x
  2. Step 2: Convert to fraction form
    788,576.40/1,182,864.60 = 256,114.80/x
  3. Step 3: Cross multiply
    788,576.40x = 1,182,864.60 × 256,114.80
  4. Step 4: Simplify right side
    788,576.40x = 302,949,130,456.08
  5. Step 5: Solve for x
    x = 302,949,130,456.08/788,576.40
  6. Step 6: Final answer
    x = 384,172.20

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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.