Home / 457,011.15-630,667.65-253,057.69

Finding the Fourth Proportional to 457,011.15, 630,667.65 and 253,057.69

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Solution

The fourth proportional to 457,011.15, 630,667.65 and 253,057.69 is: 349,215.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,011.15 : 630,667.65 = 253,057.69 : x
  2. Step 2: Convert to fraction form
    457,011.15/630,667.65 = 253,057.69/x
  3. Step 3: Cross multiply
    457,011.15x = 630,667.65 × 253,057.69
  4. Step 4: Simplify right side
    457,011.15x = 159,595,296,856.52
  5. Step 5: Solve for x
    x = 159,595,296,856.52/457,011.15
  6. Step 6: Final answer
    x = 349,215.33

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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.