Home / 776,481.60-1,164,376.80-355,886.40

Finding the Fourth Proportional to 776,481.60, 1,164,376.80 and 355,886.40

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Solution

The fourth proportional to 776,481.60, 1,164,376.80 and 355,886.40 is: 533,671.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,481.60 : 1,164,376.80 = 355,886.40 : x
  2. Step 2: Convert to fraction form
    776,481.60/1,164,376.80 = 355,886.40/x
  3. Step 3: Cross multiply
    776,481.60x = 1,164,376.80 × 355,886.40
  4. Step 4: Simplify right side
    776,481.60x = 414,385,867,595.52
  5. Step 5: Solve for x
    x = 414,385,867,595.52/776,481.60
  6. Step 6: Final answer
    x = 533,671.20

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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.