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Finding the Fourth Proportional to 406,059.90, 607,777.65 and 316,830.30

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Solution

The fourth proportional to 406,059.90, 607,777.65 and 316,830.30 is: 474,221.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,059.90 : 607,777.65 = 316,830.30 : x
  2. Step 2: Convert to fraction form
    406,059.90/607,777.65 = 316,830.30/x
  3. Step 3: Cross multiply
    406,059.90x = 607,777.65 × 316,830.30
  4. Step 4: Simplify right side
    406,059.90x = 192,562,375,182.80
  5. Step 5: Solve for x
    x = 192,562,375,182.80/406,059.90
  6. Step 6: Final answer
    x = 474,221.60

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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.