Home / 880,727.80-1,321,307.70-407,313.40

Finding the Fourth Proportional to 880,727.80, 1,321,307.70 and 407,313.40

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Solution

The fourth proportional to 880,727.80, 1,321,307.70 and 407,313.40 is: 611,069.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,727.80 : 1,321,307.70 = 407,313.40 : x
  2. Step 2: Convert to fraction form
    880,727.80/1,321,307.70 = 407,313.40/x
  3. Step 3: Cross multiply
    880,727.80x = 1,321,307.70 × 407,313.40
  4. Step 4: Simplify right side
    880,727.80x = 538,186,331,733.18
  5. Step 5: Solve for x
    x = 538,186,331,733.18/880,727.80
  6. Step 6: Final answer
    x = 611,069.99

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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.