Home / 665,815.32-920,042.28-474,496.56

Finding the Fourth Proportional to 665,815.32, 920,042.28 and 474,496.56

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Solution

The fourth proportional to 665,815.32, 920,042.28 and 474,496.56 is: 655,672.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,815.32 : 920,042.28 = 474,496.56 : x
  2. Step 2: Convert to fraction form
    665,815.32/920,042.28 = 474,496.56/x
  3. Step 3: Cross multiply
    665,815.32x = 920,042.28 × 474,496.56
  4. Step 4: Simplify right side
    665,815.32x = 436,556,896,914.56
  5. Step 5: Solve for x
    x = 436,556,896,914.56/665,815.32
  6. Step 6: Final answer
    x = 655,672.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.