Home / 598,579.20-898,905.60-318,643.20

Finding the Fourth Proportional to 598,579.20, 898,905.60 and 318,643.20

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Solution

The fourth proportional to 598,579.20, 898,905.60 and 318,643.20 is: 478,516.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,579.20 : 898,905.60 = 318,643.20 : x
  2. Step 2: Convert to fraction form
    598,579.20/898,905.60 = 318,643.20/x
  3. Step 3: Cross multiply
    598,579.20x = 898,905.60 × 318,643.20
  4. Step 4: Simplify right side
    598,579.20x = 286,430,156,881.92
  5. Step 5: Solve for x
    x = 286,430,156,881.92/598,579.20
  6. Step 6: Final answer
    x = 478,516.72

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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.