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Finding the Fourth Proportional to 504,869.40, 696,720.96 and 275,427.18

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Solution

The fourth proportional to 504,869.40, 696,720.96 and 275,427.18 is: 380,090.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,869.40 : 696,720.96 = 275,427.18 : x
  2. Step 2: Convert to fraction form
    504,869.40/696,720.96 = 275,427.18/x
  3. Step 3: Cross multiply
    504,869.40x = 696,720.96 × 275,427.18
  4. Step 4: Simplify right side
    504,869.40x = 191,895,889,259.69
  5. Step 5: Solve for x
    x = 191,895,889,259.69/504,869.40
  6. Step 6: Final answer
    x = 380,090.16

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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.