Home / 835,403.12-1,152,825.42-453,421.72

Finding the Fourth Proportional to 835,403.12, 1,152,825.42 and 453,421.72

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Solution

The fourth proportional to 835,403.12, 1,152,825.42 and 453,421.72 is: 625,705.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,403.12 : 1,152,825.42 = 453,421.72 : x
  2. Step 2: Convert to fraction form
    835,403.12/1,152,825.42 = 453,421.72/x
  3. Step 3: Cross multiply
    835,403.12x = 1,152,825.42 × 453,421.72
  4. Step 4: Simplify right side
    835,403.12x = 522,716,084,796.12
  5. Step 5: Solve for x
    x = 522,716,084,796.12/835,403.12
  6. Step 6: Final answer
    x = 625,705.21

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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.