Home / 768,340.80-1,152,511.20-453,153.60

Finding the Fourth Proportional to 768,340.80, 1,152,511.20 and 453,153.60

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Solution

The fourth proportional to 768,340.80, 1,152,511.20 and 453,153.60 is: 679,730.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,340.80 : 1,152,511.20 = 453,153.60 : x
  2. Step 2: Convert to fraction form
    768,340.80/1,152,511.20 = 453,153.60/x
  3. Step 3: Cross multiply
    768,340.80x = 1,152,511.20 × 453,153.60
  4. Step 4: Simplify right side
    768,340.80x = 522,264,599,320.32
  5. Step 5: Solve for x
    x = 522,264,599,320.32/768,340.80
  6. Step 6: Final answer
    x = 679,730.40

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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.