Home / 642,048.56-885,733.04-415,766.96

Finding the Fourth Proportional to 642,048.56, 885,733.04 and 415,766.96

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Solution

The fourth proportional to 642,048.56, 885,733.04 and 415,766.96 is: 573,568.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,048.56 : 885,733.04 = 415,766.96 : x
  2. Step 2: Convert to fraction form
    642,048.56/885,733.04 = 415,766.96/x
  3. Step 3: Cross multiply
    642,048.56x = 885,733.04 × 415,766.96
  4. Step 4: Simplify right side
    642,048.56x = 368,258,533,412.36
  5. Step 5: Solve for x
    x = 368,258,533,412.36/642,048.56
  6. Step 6: Final answer
    x = 573,568.04

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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.