Home / 767,905.04-1,059,707.40-428,353.04

Finding the Fourth Proportional to 767,905.04, 1,059,707.40 and 428,353.04

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Solution

The fourth proportional to 767,905.04, 1,059,707.40 and 428,353.04 is: 591,126.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,905.04 : 1,059,707.40 = 428,353.04 : x
  2. Step 2: Convert to fraction form
    767,905.04/1,059,707.40 = 428,353.04/x
  3. Step 3: Cross multiply
    767,905.04x = 1,059,707.40 × 428,353.04
  4. Step 4: Simplify right side
    767,905.04x = 453,928,886,300.50
  5. Step 5: Solve for x
    x = 453,928,886,300.50/767,905.04
  6. Step 6: Final answer
    x = 591,126.33

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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.