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Finding the Fourth Proportional to 559,615.56, 772,269.60 and 304,966.80

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Solution

The fourth proportional to 559,615.56, 772,269.60 and 304,966.80 is: 420,854.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,615.56 : 772,269.60 = 304,966.80 : x
  2. Step 2: Convert to fraction form
    559,615.56/772,269.60 = 304,966.80/x
  3. Step 3: Cross multiply
    559,615.56x = 772,269.60 × 304,966.80
  4. Step 4: Simplify right side
    559,615.56x = 235,516,588,649.28
  5. Step 5: Solve for x
    x = 235,516,588,649.28/559,615.56
  6. Step 6: Final answer
    x = 420,854.25

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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.