Home / 740,658.60-1,022,103.78-401,119.08

Finding the Fourth Proportional to 740,658.60, 1,022,103.78 and 401,119.08

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Solution

The fourth proportional to 740,658.60, 1,022,103.78 and 401,119.08 is: 553,541.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,658.60 : 1,022,103.78 = 401,119.08 : x
  2. Step 2: Convert to fraction form
    740,658.60/1,022,103.78 = 401,119.08/x
  3. Step 3: Cross multiply
    740,658.60x = 1,022,103.78 × 401,119.08
  4. Step 4: Simplify right side
    740,658.60x = 409,985,327,898.12
  5. Step 5: Solve for x
    x = 409,985,327,898.12/740,658.60
  6. Step 6: Final answer
    x = 553,541.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.