Home / 549,401.73-758,138.30-307,628.88

Finding the Fourth Proportional to 549,401.73, 758,138.30 and 307,628.88

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Solution

The fourth proportional to 549,401.73, 758,138.30 and 307,628.88 is: 424,507.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,401.73 : 758,138.30 = 307,628.88 : x
  2. Step 2: Convert to fraction form
    549,401.73/758,138.30 = 307,628.88/x
  3. Step 3: Cross multiply
    549,401.73x = 758,138.30 × 307,628.88
  4. Step 4: Simplify right side
    549,401.73x = 233,225,230,785.27
  5. Step 5: Solve for x
    x = 233,225,230,785.27/549,401.73
  6. Step 6: Final answer
    x = 424,507.64

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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.