Home / 457,212.29-630,561.98-275,885.69

Finding the Fourth Proportional to 457,212.29, 630,561.98 and 275,885.69

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Solution

The fourth proportional to 457,212.29, 630,561.98 and 275,885.69 is: 380,486.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,212.29 : 630,561.98 = 275,885.69 : x
  2. Step 2: Convert to fraction form
    457,212.29/630,561.98 = 275,885.69/x
  3. Step 3: Cross multiply
    457,212.29x = 630,561.98 × 275,885.69
  4. Step 4: Simplify right side
    457,212.29x = 173,963,024,476.97
  5. Step 5: Solve for x
    x = 173,963,024,476.97/457,212.29
  6. Step 6: Final answer
    x = 380,486.33

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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.