Home / 868,801.20-1,303,266.60-307,762.80

Finding the Fourth Proportional to 868,801.20, 1,303,266.60 and 307,762.80

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Solution

The fourth proportional to 868,801.20, 1,303,266.60 and 307,762.80 is: 461,667.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,801.20 : 1,303,266.60 = 307,762.80 : x
  2. Step 2: Convert to fraction form
    868,801.20/1,303,266.60 = 307,762.80/x
  3. Step 3: Cross multiply
    868,801.20x = 1,303,266.60 × 307,762.80
  4. Step 4: Simplify right side
    868,801.20x = 401,096,977,962.48
  5. Step 5: Solve for x
    x = 401,096,977,962.48/868,801.20
  6. Step 6: Final answer
    x = 461,667.15

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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.