Home / 761,035.70-1,050,171.45-421,496.66

Finding the Fourth Proportional to 761,035.70, 1,050,171.45 and 421,496.66

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Solution

The fourth proportional to 761,035.70, 1,050,171.45 and 421,496.66 is: 581,633.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,035.70 : 1,050,171.45 = 421,496.66 : x
  2. Step 2: Convert to fraction form
    761,035.70/1,050,171.45 = 421,496.66/x
  3. Step 3: Cross multiply
    761,035.70x = 1,050,171.45 × 421,496.66
  4. Step 4: Simplify right side
    761,035.70x = 442,643,753,351.50
  5. Step 5: Solve for x
    x = 442,643,753,351.50/761,035.70
  6. Step 6: Final answer
    x = 581,633.37

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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.