Home / 761,048.92-1,050,189.70-421,509.88

Finding the Fourth Proportional to 761,048.92, 1,050,189.70 and 421,509.88

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Solution

The fourth proportional to 761,048.92, 1,050,189.70 and 421,509.88 is: 581,651.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,048.92 : 1,050,189.70 = 421,509.88 : x
  2. Step 2: Convert to fraction form
    761,048.92/1,050,189.70 = 421,509.88/x
  3. Step 3: Cross multiply
    761,048.92x = 1,050,189.70 × 421,509.88
  4. Step 4: Simplify right side
    761,048.92x = 442,665,330,744.99
  5. Step 5: Solve for x
    x = 442,665,330,744.99/761,048.92
  6. Step 6: Final answer
    x = 581,651.61

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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.