Home / 747,009.20-1,120,513.80-186,043.70

Finding the Fourth Proportional to 747,009.20, 1,120,513.80 and 186,043.70

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Solution

The fourth proportional to 747,009.20, 1,120,513.80 and 186,043.70 is: 279,065.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,009.20 : 1,120,513.80 = 186,043.70 : x
  2. Step 2: Convert to fraction form
    747,009.20/1,120,513.80 = 186,043.70/x
  3. Step 3: Cross multiply
    747,009.20x = 1,120,513.80 × 186,043.70
  4. Step 4: Simplify right side
    747,009.20x = 208,464,533,253.06
  5. Step 5: Solve for x
    x = 208,464,533,253.06/747,009.20
  6. Step 6: Final answer
    x = 279,065.55

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Double scale
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Similar ratio
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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.