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Finding the Fourth Proportional to 479,010.40, 717,702.23 and 289,071.63

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Solution

The fourth proportional to 479,010.40, 717,702.23 and 289,071.63 is: 433,116.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,010.40 : 717,702.23 = 289,071.63 : x
  2. Step 2: Convert to fraction form
    479,010.40/717,702.23 = 289,071.63/x
  3. Step 3: Cross multiply
    479,010.40x = 717,702.23 × 289,071.63
  4. Step 4: Simplify right side
    479,010.40x = 207,467,354,203.41
  5. Step 5: Solve for x
    x = 207,467,354,203.41/479,010.40
  6. Step 6: Final answer
    x = 433,116.60

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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.