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Finding the Fourth Proportional to 815,601.60, 1,125,492.96 and 453,048.96

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Solution

The fourth proportional to 815,601.60, 1,125,492.96 and 453,048.96 is: 625,186.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,601.60 : 1,125,492.96 = 453,048.96 : x
  2. Step 2: Convert to fraction form
    815,601.60/1,125,492.96 = 453,048.96/x
  3. Step 3: Cross multiply
    815,601.60x = 1,125,492.96 × 453,048.96
  4. Step 4: Simplify right side
    815,601.60x = 509,903,415,015.32
  5. Step 5: Solve for x
    x = 509,903,415,015.32/815,601.60
  6. Step 6: Final answer
    x = 625,186.87

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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.