Home / 730,020.78-1,007,417.94-407,735.34

Finding the Fourth Proportional to 730,020.78, 1,007,417.94 and 407,735.34

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Solution

The fourth proportional to 730,020.78, 1,007,417.94 and 407,735.34 is: 562,668.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,020.78 : 1,007,417.94 = 407,735.34 : x
  2. Step 2: Convert to fraction form
    730,020.78/1,007,417.94 = 407,735.34/x
  3. Step 3: Cross multiply
    730,020.78x = 1,007,417.94 × 407,735.34
  4. Step 4: Simplify right side
    730,020.78x = 410,759,896,288.00
  5. Step 5: Solve for x
    x = 410,759,896,288.00/730,020.78
  6. Step 6: Final answer
    x = 562,668.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.