Home / 740,009.76-1,021,250.24-449,623.52

Finding the Fourth Proportional to 740,009.76, 1,021,250.24 and 449,623.52

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Solution

The fourth proportional to 740,009.76, 1,021,250.24 and 449,623.52 is: 620,502.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,009.76 : 1,021,250.24 = 449,623.52 : x
  2. Step 2: Convert to fraction form
    740,009.76/1,021,250.24 = 449,623.52/x
  3. Step 3: Cross multiply
    740,009.76x = 1,021,250.24 × 449,623.52
  4. Step 4: Simplify right side
    740,009.76x = 459,178,127,709.65
  5. Step 5: Solve for x
    x = 459,178,127,709.65/740,009.76
  6. Step 6: Final answer
    x = 620,502.80

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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.