Home / 549,726.75-823,643.37-429,736.95

Finding the Fourth Proportional to 549,726.75, 823,643.37 and 429,736.95

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Solution

The fourth proportional to 549,726.75, 823,643.37 and 429,736.95 is: 643,865.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,726.75 : 823,643.37 = 429,736.95 : x
  2. Step 2: Convert to fraction form
    549,726.75/823,643.37 = 429,736.95/x
  3. Step 3: Cross multiply
    549,726.75x = 823,643.37 × 429,736.95
  4. Step 4: Simplify right side
    549,726.75x = 353,949,989,711.52
  5. Step 5: Solve for x
    x = 353,949,989,711.52/549,726.75
  6. Step 6: Final answer
    x = 643,865.32

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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.