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Finding the Fourth Proportional to 545,661.60, 818,492.40 and 459,056.40

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Solution

The fourth proportional to 545,661.60, 818,492.40 and 459,056.40 is: 688,584.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,661.60 : 818,492.40 = 459,056.40 : x
  2. Step 2: Convert to fraction form
    545,661.60/818,492.40 = 459,056.40/x
  3. Step 3: Cross multiply
    545,661.60x = 818,492.40 × 459,056.40
  4. Step 4: Simplify right side
    545,661.60x = 375,734,174,571.36
  5. Step 5: Solve for x
    x = 375,734,174,571.36/545,661.60
  6. Step 6: Final answer
    x = 688,584.60

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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.