Home / 459,831.20-689,775.95-144,300.56

Finding the Fourth Proportional to 459,831.20, 689,775.95 and 144,300.56

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Solution

The fourth proportional to 459,831.20, 689,775.95 and 144,300.56 is: 216,459.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,831.20 : 689,775.95 = 144,300.56 : x
  2. Step 2: Convert to fraction form
    459,831.20/689,775.95 = 144,300.56/x
  3. Step 3: Cross multiply
    459,831.20x = 689,775.95 × 144,300.56
  4. Step 4: Simplify right side
    459,831.20x = 99,535,052,771.40
  5. Step 5: Solve for x
    x = 99,535,052,771.40/459,831.20
  6. Step 6: Final answer
    x = 216,459.98

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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.