Home / 688,276.80-1,032,069.60-313,876.80

Finding the Fourth Proportional to 688,276.80, 1,032,069.60 and 313,876.80

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Solution

The fourth proportional to 688,276.80, 1,032,069.60 and 313,876.80 is: 470,657.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,276.80 : 1,032,069.60 = 313,876.80 : x
  2. Step 2: Convert to fraction form
    688,276.80/1,032,069.60 = 313,876.80/x
  3. Step 3: Cross multiply
    688,276.80x = 1,032,069.60 × 313,876.80
  4. Step 4: Simplify right side
    688,276.80x = 323,942,703,425.28
  5. Step 5: Solve for x
    x = 323,942,703,425.28/688,276.80
  6. Step 6: Final answer
    x = 470,657.60

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1.5x scale

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.