Home / 457,819.77-631,788.09-253,870.80

Finding the Fourth Proportional to 457,819.77, 631,788.09 and 253,870.80

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Solution

The fourth proportional to 457,819.77, 631,788.09 and 253,870.80 is: 350,339.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,819.77 : 631,788.09 = 253,870.80 : x
  2. Step 2: Convert to fraction form
    457,819.77/631,788.09 = 253,870.80/x
  3. Step 3: Cross multiply
    457,819.77x = 631,788.09 × 253,870.80
  4. Step 4: Simplify right side
    457,819.77x = 160,392,547,838.77
  5. Step 5: Solve for x
    x = 160,392,547,838.77/457,819.77
  6. Step 6: Final answer
    x = 350,339.93

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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.