Home / 457,020.88-630,349-295,751.52

Finding the Fourth Proportional to 457,020.88, 630,349 and 295,751.52

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Solution

The fourth proportional to 457,020.88, 630,349 and 295,751.52 is: 407,917.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,020.88 : 630,349 = 295,751.52 : x
  2. Step 2: Convert to fraction form
    457,020.88/630,349 = 295,751.52/x
  3. Step 3: Cross multiply
    457,020.88x = 630,349 × 295,751.52
  4. Step 4: Simplify right side
    457,020.88x = 186,426,674,880.48
  5. Step 5: Solve for x
    x = 186,426,674,880.48/457,020.88
  6. Step 6: Final answer
    x = 407,917.19

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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.