Home / 775,365.66-1,164,377.10-421,071.66

Finding the Fourth Proportional to 775,365.66, 1,164,377.10 and 421,071.66

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Solution

The fourth proportional to 775,365.66, 1,164,377.10 and 421,071.66 is: 632,329.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,365.66 : 1,164,377.10 = 421,071.66 : x
  2. Step 2: Convert to fraction form
    775,365.66/1,164,377.10 = 421,071.66/x
  3. Step 3: Cross multiply
    775,365.66x = 1,164,377.10 × 421,071.66
  4. Step 4: Simplify right side
    775,365.66x = 490,286,198,362.99
  5. Step 5: Solve for x
    x = 490,286,198,362.99/775,365.66
  6. Step 6: Final answer
    x = 632,329.01

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Double scale
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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.