Home / 688,914.60-1,033,400.70-368,932.20

Finding the Fourth Proportional to 688,914.60, 1,033,400.70 and 368,932.20

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Solution

The fourth proportional to 688,914.60, 1,033,400.70 and 368,932.20 is: 553,413.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,914.60 : 1,033,400.70 = 368,932.20 : x
  2. Step 2: Convert to fraction form
    688,914.60/1,033,400.70 = 368,932.20/x
  3. Step 3: Cross multiply
    688,914.60x = 1,033,400.70 × 368,932.20
  4. Step 4: Simplify right side
    688,914.60x = 381,254,793,732.54
  5. Step 5: Solve for x
    x = 381,254,793,732.54/688,914.60
  6. Step 6: Final answer
    x = 553,413.72

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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.