Home / 1,330,482.66-1,995,695.72-431,923.12

Finding the Fourth Proportional to 1,330,482.66, 1,995,695.72 and 431,923.12

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Solution

The fourth proportional to 1,330,482.66, 1,995,695.72 and 431,923.12 is: 647,875.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,482.66 : 1,995,695.72 = 431,923.12 : x
  2. Step 2: Convert to fraction form
    1,330,482.66/1,995,695.72 = 431,923.12/x
  3. Step 3: Cross multiply
    1,330,482.66x = 1,995,695.72 × 431,923.12
  4. Step 4: Simplify right side
    1,330,482.66x = 861,987,121,953.05
  5. Step 5: Solve for x
    x = 861,987,121,953.05/1,330,482.66
  6. Step 6: Final answer
    x = 647,875.50

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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.