Home / 674,509.20-1,011,647.16-253,788.72

Finding the Fourth Proportional to 674,509.20, 1,011,647.16 and 253,788.72

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Solution

The fourth proportional to 674,509.20, 1,011,647.16 and 253,788.72 is: 380,639.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,509.20 : 1,011,647.16 = 253,788.72 : x
  2. Step 2: Convert to fraction form
    674,509.20/1,011,647.16 = 253,788.72/x
  3. Step 3: Cross multiply
    674,509.20x = 1,011,647.16 × 253,788.72
  4. Step 4: Simplify right side
    674,509.20x = 256,744,637,828.04
  5. Step 5: Solve for x
    x = 256,744,637,828.04/674,509.20
  6. Step 6: Final answer
    x = 380,639.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.