Home / 1,276,987.80-1,915,426.32-317,423.10

Finding the Fourth Proportional to 1,276,987.80, 1,915,426.32 and 317,423.10

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Solution

The fourth proportional to 1,276,987.80, 1,915,426.32 and 317,423.10 is: 476,120.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,987.80 : 1,915,426.32 = 317,423.10 : x
  2. Step 2: Convert to fraction form
    1,276,987.80/1,915,426.32 = 317,423.10/x
  3. Step 3: Cross multiply
    1,276,987.80x = 1,915,426.32 × 317,423.10
  4. Step 4: Simplify right side
    1,276,987.80x = 608,000,560,315.99
  5. Step 5: Solve for x
    x = 608,000,560,315.99/1,276,987.80
  6. Step 6: Final answer
    x = 476,120.88

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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.