Home / 761,108.63-1,050,364.53-421,576.88

Finding the Fourth Proportional to 761,108.63, 1,050,364.53 and 421,576.88

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Solution

The fourth proportional to 761,108.63, 1,050,364.53 and 421,576.88 is: 581,795.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,108.63 : 1,050,364.53 = 421,576.88 : x
  2. Step 2: Convert to fraction form
    761,108.63/1,050,364.53 = 421,576.88/x
  3. Step 3: Cross multiply
    761,108.63x = 1,050,364.53 × 421,576.88
  4. Step 4: Simplify right side
    761,108.63x = 442,809,396,168.24
  5. Step 5: Solve for x
    x = 442,809,396,168.24/761,108.63
  6. Step 6: Final answer
    x = 581,795.27

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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.