Home / 459,869.54-689,803.70-144,351.05

Finding the Fourth Proportional to 459,869.54, 689,803.70 and 144,351.05

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Solution

The fourth proportional to 459,869.54, 689,803.70 and 144,351.05 is: 216,526.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,869.54 : 689,803.70 = 144,351.05 : x
  2. Step 2: Convert to fraction form
    459,869.54/689,803.70 = 144,351.05/x
  3. Step 3: Cross multiply
    459,869.54x = 689,803.70 × 144,351.05
  4. Step 4: Simplify right side
    459,869.54x = 99,573,884,218.11
  5. Step 5: Solve for x
    x = 99,573,884,218.11/459,869.54
  6. Step 6: Final answer
    x = 216,526.38

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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.