Home / 761,428.34-1,050,755.89-421,899.38

Finding the Fourth Proportional to 761,428.34, 1,050,755.89 and 421,899.38

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Solution

The fourth proportional to 761,428.34, 1,050,755.89 and 421,899.38 is: 582,212.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,428.34 : 1,050,755.89 = 421,899.38 : x
  2. Step 2: Convert to fraction form
    761,428.34/1,050,755.89 = 421,899.38/x
  3. Step 3: Cross multiply
    761,428.34x = 1,050,755.89 × 421,899.38
  4. Step 4: Simplify right side
    761,428.34x = 443,313,258,522.35
  5. Step 5: Solve for x
    x = 443,313,258,522.35/761,428.34
  6. Step 6: Final answer
    x = 582,212.71

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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.