Home / 761,112.63-1,050,370.05-421,580.88

Finding the Fourth Proportional to 761,112.63, 1,050,370.05 and 421,580.88

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Solution

The fourth proportional to 761,112.63, 1,050,370.05 and 421,580.88 is: 581,800.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,112.63 : 1,050,370.05 = 421,580.88 : x
  2. Step 2: Convert to fraction form
    761,112.63/1,050,370.05 = 421,580.88/x
  3. Step 3: Cross multiply
    761,112.63x = 1,050,370.05 × 421,580.88
  4. Step 4: Simplify right side
    761,112.63x = 442,815,930,004.64
  5. Step 5: Solve for x
    x = 442,815,930,004.64/761,112.63
  6. Step 6: Final answer
    x = 581,800.79

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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.