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Finding the Fourth Proportional to 426,362.88, 587,397.12 and 406,456.32

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Solution

The fourth proportional to 426,362.88, 587,397.12 and 406,456.32 is: 559,971.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,362.88 : 587,397.12 = 406,456.32 : x
  2. Step 2: Convert to fraction form
    426,362.88/587,397.12 = 406,456.32/x
  3. Step 3: Cross multiply
    426,362.88x = 587,397.12 × 406,456.32
  4. Step 4: Simplify right side
    426,362.88x = 238,751,271,773.80
  5. Step 5: Solve for x
    x = 238,751,271,773.80/426,362.88
  6. Step 6: Final answer
    x = 559,971.99

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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.