Home / 525,140.10-788,660.55-459,821.70

Finding the Fourth Proportional to 525,140.10, 788,660.55 and 459,821.70

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Solution

The fourth proportional to 525,140.10, 788,660.55 and 459,821.70 is: 690,564.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,140.10 : 788,660.55 = 459,821.70 : x
  2. Step 2: Convert to fraction form
    525,140.10/788,660.55 = 459,821.70/x
  3. Step 3: Cross multiply
    525,140.10x = 788,660.55 × 459,821.70
  4. Step 4: Simplify right side
    525,140.10x = 362,643,234,823.94
  5. Step 5: Solve for x
    x = 362,643,234,823.94/525,140.10
  6. Step 6: Final answer
    x = 690,564.74

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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.