Home / 755,720.32-1,042,881.44-416,220.16

Finding the Fourth Proportional to 755,720.32, 1,042,881.44 and 416,220.16

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Solution

The fourth proportional to 755,720.32, 1,042,881.44 and 416,220.16 is: 574,376.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,720.32 : 1,042,881.44 = 416,220.16 : x
  2. Step 2: Convert to fraction form
    755,720.32/1,042,881.44 = 416,220.16/x
  3. Step 3: Cross multiply
    755,720.32x = 1,042,881.44 × 416,220.16
  4. Step 4: Simplify right side
    755,720.32x = 434,068,279,817.83
  5. Step 5: Solve for x
    x = 434,068,279,817.83/755,720.32
  6. Step 6: Final answer
    x = 574,376.88

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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.