Home / 1,047,100.77-1,570,730.72-407,129.54

Finding the Fourth Proportional to 1,047,100.77, 1,570,730.72 and 407,129.54

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Solution

The fourth proportional to 1,047,100.77, 1,570,730.72 and 407,129.54 is: 610,725.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,047,100.77 : 1,570,730.72 = 407,129.54 : x
  2. Step 2: Convert to fraction form
    1,047,100.77/1,570,730.72 = 407,129.54/x
  3. Step 3: Cross multiply
    1,047,100.77x = 1,570,730.72 × 407,129.54
  4. Step 4: Simplify right side
    1,047,100.77x = 639,490,865,608.17
  5. Step 5: Solve for x
    x = 639,490,865,608.17/1,047,100.77
  6. Step 6: Final answer
    x = 610,725.24

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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.