Home / 1,011,393.52-1,517,148.66-380,312.80

Finding the Fourth Proportional to 1,011,393.52, 1,517,148.66 and 380,312.80

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Solution

The fourth proportional to 1,011,393.52, 1,517,148.66 and 380,312.80 is: 570,491.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,393.52 : 1,517,148.66 = 380,312.80 : x
  2. Step 2: Convert to fraction form
    1,011,393.52/1,517,148.66 = 380,312.80/x
  3. Step 3: Cross multiply
    1,011,393.52x = 1,517,148.66 × 380,312.80
  4. Step 4: Simplify right side
    1,011,393.52x = 576,991,054,900.85
  5. Step 5: Solve for x
    x = 576,991,054,900.85/1,011,393.52
  6. Step 6: Final answer
    x = 570,491.15

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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.