Home / 680,043.20-1,018,509.60-347,230.40

Finding the Fourth Proportional to 680,043.20, 1,018,509.60 and 347,230.40

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Solution

The fourth proportional to 680,043.20, 1,018,509.60 and 347,230.40 is: 520,051.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,043.20 : 1,018,509.60 = 347,230.40 : x
  2. Step 2: Convert to fraction form
    680,043.20/1,018,509.60 = 347,230.40/x
  3. Step 3: Cross multiply
    680,043.20x = 1,018,509.60 × 347,230.40
  4. Step 4: Simplify right side
    680,043.20x = 353,657,495,811.84
  5. Step 5: Solve for x
    x = 353,657,495,811.84/680,043.20
  6. Step 6: Final answer
    x = 520,051.51

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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.