Home / 761,105.22-1,050,396.30-421,573.74

Finding the Fourth Proportional to 761,105.22, 1,050,396.30 and 421,573.74

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Solution

The fourth proportional to 761,105.22, 1,050,396.30 and 421,573.74 is: 581,811.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,105.22 : 1,050,396.30 = 421,573.74 : x
  2. Step 2: Convert to fraction form
    761,105.22/1,050,396.30 = 421,573.74/x
  3. Step 3: Cross multiply
    761,105.22x = 1,050,396.30 × 421,573.74
  4. Step 4: Simplify right side
    761,105.22x = 442,819,496,673.16
  5. Step 5: Solve for x
    x = 442,819,496,673.16/761,105.22
  6. Step 6: Final answer
    x = 581,811.14

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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.