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Finding the Fourth Proportional to 535,503.60, 739,032.48 and 306,094.80

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Solution

The fourth proportional to 535,503.60, 739,032.48 and 306,094.80 is: 422,432.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,503.60 : 739,032.48 = 306,094.80 : x
  2. Step 2: Convert to fraction form
    535,503.60/739,032.48 = 306,094.80/x
  3. Step 3: Cross multiply
    535,503.60x = 739,032.48 × 306,094.80
  4. Step 4: Simplify right side
    535,503.60x = 226,213,999,159.10
  5. Step 5: Solve for x
    x = 226,213,999,159.10/535,503.60
  6. Step 6: Final answer
    x = 422,432.27

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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.