Home / 906,914.40-1,360,328.40-307,816.80

Finding the Fourth Proportional to 906,914.40, 1,360,328.40 and 307,816.80

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Solution

The fourth proportional to 906,914.40, 1,360,328.40 and 307,816.80 is: 461,710.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,914.40 : 1,360,328.40 = 307,816.80 : x
  2. Step 2: Convert to fraction form
    906,914.40/1,360,328.40 = 307,816.80/x
  3. Step 3: Cross multiply
    906,914.40x = 1,360,328.40 × 307,816.80
  4. Step 4: Simplify right side
    906,914.40x = 418,731,935,037.12
  5. Step 5: Solve for x
    x = 418,731,935,037.12/906,914.40
  6. Step 6: Final answer
    x = 461,710.54

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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.