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Finding the Fourth Proportional to 660,959.82, 912,125.46 and 374,499.24

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Solution

The fourth proportional to 660,959.82, 912,125.46 and 374,499.24 is: 516,809.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,959.82 : 912,125.46 = 374,499.24 : x
  2. Step 2: Convert to fraction form
    660,959.82/912,125.46 = 374,499.24/x
  3. Step 3: Cross multiply
    660,959.82x = 912,125.46 × 374,499.24
  4. Step 4: Simplify right side
    660,959.82x = 341,590,291,554.65
  5. Step 5: Solve for x
    x = 341,590,291,554.65/660,959.82
  6. Step 6: Final answer
    x = 516,809.47

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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.