Home / 459,360.04-689,132.03-257,243.57

Finding the Fourth Proportional to 459,360.04, 689,132.03 and 257,243.57

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Solution

The fourth proportional to 459,360.04, 689,132.03 and 257,243.57 is: 385,916.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,360.04 : 689,132.03 = 257,243.57 : x
  2. Step 2: Convert to fraction form
    459,360.04/689,132.03 = 257,243.57/x
  3. Step 3: Cross multiply
    459,360.04x = 689,132.03 × 257,243.57
  4. Step 4: Simplify right side
    459,360.04x = 177,274,785,154.70
  5. Step 5: Solve for x
    x = 177,274,785,154.70/459,360.04
  6. Step 6: Final answer
    x = 385,916.86

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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.