Home / 778,758.24-1,168,137.36-305,666.40

Finding the Fourth Proportional to 778,758.24, 1,168,137.36 and 305,666.40

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Solution

The fourth proportional to 778,758.24, 1,168,137.36 and 305,666.40 is: 458,499.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,758.24 : 1,168,137.36 = 305,666.40 : x
  2. Step 2: Convert to fraction form
    778,758.24/1,168,137.36 = 305,666.40/x
  3. Step 3: Cross multiply
    778,758.24x = 1,168,137.36 × 305,666.40
  4. Step 4: Simplify right side
    778,758.24x = 357,060,341,536.70
  5. Step 5: Solve for x
    x = 357,060,341,536.70/778,758.24
  6. Step 6: Final answer
    x = 458,499.60

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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.