Home / 740,276.96-1,021,585.46-400,745.20

Finding the Fourth Proportional to 740,276.96, 1,021,585.46 and 400,745.20

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Solution

The fourth proportional to 740,276.96, 1,021,585.46 and 400,745.20 is: 553,030.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,276.96 : 1,021,585.46 = 400,745.20 : x
  2. Step 2: Convert to fraction form
    740,276.96/1,021,585.46 = 400,745.20/x
  3. Step 3: Cross multiply
    740,276.96x = 1,021,585.46 × 400,745.20
  4. Step 4: Simplify right side
    740,276.96x = 409,395,469,484.79
  5. Step 5: Solve for x
    x = 409,395,469,484.79/740,276.96
  6. Step 6: Final answer
    x = 553,030.14

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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.