Home / 859,344.60-1,289,543.40-354,147.60

Finding the Fourth Proportional to 859,344.60, 1,289,543.40 and 354,147.60

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Solution

The fourth proportional to 859,344.60, 1,289,543.40 and 354,147.60 is: 531,438.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,344.60 : 1,289,543.40 = 354,147.60 : x
  2. Step 2: Convert to fraction form
    859,344.60/1,289,543.40 = 354,147.60/x
  3. Step 3: Cross multiply
    859,344.60x = 1,289,543.40 × 354,147.60
  4. Step 4: Simplify right side
    859,344.60x = 456,688,700,205.84
  5. Step 5: Solve for x
    x = 456,688,700,205.84/859,344.60
  6. Step 6: Final answer
    x = 531,438.38

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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.