Home / 459,848.40-689,794.20-144,315.60

Finding the Fourth Proportional to 459,848.40, 689,794.20 and 144,315.60

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Solution

The fourth proportional to 459,848.40, 689,794.20 and 144,315.60 is: 216,480.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,848.40 : 689,794.20 = 144,315.60 : x
  2. Step 2: Convert to fraction form
    459,848.40/689,794.20 = 144,315.60/x
  3. Step 3: Cross multiply
    459,848.40x = 689,794.20 × 144,315.60
  4. Step 4: Simplify right side
    459,848.40x = 99,548,063,849.52
  5. Step 5: Solve for x
    x = 99,548,063,849.52/459,848.40
  6. Step 6: Final answer
    x = 216,480.18

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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.