Home / 1,225,538.48-1,838,357.16-426,900.80

Finding the Fourth Proportional to 1,225,538.48, 1,838,357.16 and 426,900.80

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Solution

The fourth proportional to 1,225,538.48, 1,838,357.16 and 426,900.80 is: 640,368.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,538.48 : 1,838,357.16 = 426,900.80 : x
  2. Step 2: Convert to fraction form
    1,225,538.48/1,838,357.16 = 426,900.80/x
  3. Step 3: Cross multiply
    1,225,538.48x = 1,838,357.16 × 426,900.80
  4. Step 4: Simplify right side
    1,225,538.48x = 784,796,142,289.73
  5. Step 5: Solve for x
    x = 784,796,142,289.73/1,225,538.48
  6. Step 6: Final answer
    x = 640,368.42

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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.