Home / 724,579.53-1,085,659.76-319,167.74

Finding the Fourth Proportional to 724,579.53, 1,085,659.76 and 319,167.74

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Solution

The fourth proportional to 724,579.53, 1,085,659.76 and 319,167.74 is: 478,218.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,579.53 : 1,085,659.76 = 319,167.74 : x
  2. Step 2: Convert to fraction form
    724,579.53/1,085,659.76 = 319,167.74/x
  3. Step 3: Cross multiply
    724,579.53x = 1,085,659.76 × 319,167.74
  4. Step 4: Simplify right side
    724,579.53x = 346,507,573,724.89
  5. Step 5: Solve for x
    x = 346,507,573,724.89/724,579.53
  6. Step 6: Final answer
    x = 478,218.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.