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Finding the Fourth Proportional to 459,988.64, 690,010.64 and 144,445.55

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Solution

The fourth proportional to 459,988.64, 690,010.64 and 144,445.55 is: 216,677.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,988.64 : 690,010.64 = 144,445.55 : x
  2. Step 2: Convert to fraction form
    459,988.64/690,010.64 = 144,445.55/x
  3. Step 3: Cross multiply
    459,988.64x = 690,010.64 × 144,445.55
  4. Step 4: Simplify right side
    459,988.64x = 99,668,962,228.37
  5. Step 5: Solve for x
    x = 99,668,962,228.37/459,988.64
  6. Step 6: Final answer
    x = 216,677.01

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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.