Home / 779,976.40-1,169,964.60-360,072.40

Finding the Fourth Proportional to 779,976.40, 1,169,964.60 and 360,072.40

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Solution

The fourth proportional to 779,976.40, 1,169,964.60 and 360,072.40 is: 540,108.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,976.40 : 1,169,964.60 = 360,072.40 : x
  2. Step 2: Convert to fraction form
    779,976.40/1,169,964.60 = 360,072.40/x
  3. Step 3: Cross multiply
    779,976.40x = 1,169,964.60 × 360,072.40
  4. Step 4: Simplify right side
    779,976.40x = 421,271,961,437.04
  5. Step 5: Solve for x
    x = 421,271,961,437.04/779,976.40
  6. Step 6: Final answer
    x = 540,108.60

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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.