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Finding the Fourth Proportional to 581,619.30, 815,925.90 and 581,619.30

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Solution

The fourth proportional to 581,619.30, 815,925.90 and 581,619.30 is: 815,925.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,619.30 : 815,925.90 = 581,619.30 : x
  2. Step 2: Convert to fraction form
    581,619.30/815,925.90 = 581,619.30/x
  3. Step 3: Cross multiply
    581,619.30x = 815,925.90 × 581,619.30
  4. Step 4: Simplify right side
    581,619.30x = 474,558,250,809.87
  5. Step 5: Solve for x
    x = 474,558,250,809.87/581,619.30
  6. Step 6: Final answer
    x = 815,925.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.