Home / 761,102.43-1,050,236.60-421,485.63

Finding the Fourth Proportional to 761,102.43, 1,050,236.60 and 421,485.63

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Solution

The fourth proportional to 761,102.43, 1,050,236.60 and 421,485.63 is: 581,603.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,102.43 : 1,050,236.60 = 421,485.63 : x
  2. Step 2: Convert to fraction form
    761,102.43/1,050,236.60 = 421,485.63/x
  3. Step 3: Cross multiply
    761,102.43x = 1,050,236.60 × 421,485.63
  4. Step 4: Simplify right side
    761,102.43x = 442,659,632,892.63
  5. Step 5: Solve for x
    x = 442,659,632,892.63/761,102.43
  6. Step 6: Final answer
    x = 581,603.23

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Double scale
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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.