Home / 872,869.34-1,204,551.80-490,887.92

Finding the Fourth Proportional to 872,869.34, 1,204,551.80 and 490,887.92

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Solution

The fourth proportional to 872,869.34, 1,204,551.80 and 490,887.92 is: 677,420.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,869.34 : 1,204,551.80 = 490,887.92 : x
  2. Step 2: Convert to fraction form
    872,869.34/1,204,551.80 = 490,887.92/x
  3. Step 3: Cross multiply
    872,869.34x = 1,204,551.80 × 490,887.92
  4. Step 4: Simplify right side
    872,869.34x = 591,299,919,157.06
  5. Step 5: Solve for x
    x = 591,299,919,157.06/872,869.34
  6. Step 6: Final answer
    x = 677,420.89

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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.