Home / 767,669.58-1,059,385.86-428,159.70

Finding the Fourth Proportional to 767,669.58, 1,059,385.86 and 428,159.70

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Solution

The fourth proportional to 767,669.58, 1,059,385.86 and 428,159.70 is: 590,861.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,669.58 : 1,059,385.86 = 428,159.70 : x
  2. Step 2: Convert to fraction form
    767,669.58/1,059,385.86 = 428,159.70/x
  3. Step 3: Cross multiply
    767,669.58x = 1,059,385.86 × 428,159.70
  4. Step 4: Simplify right side
    767,669.58x = 453,586,332,001.84
  5. Step 5: Solve for x
    x = 453,586,332,001.84/767,669.58
  6. Step 6: Final answer
    x = 590,861.41

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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.