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Finding the Fourth Proportional to 1,010,804.80, 1,515,769.80 and 411,566.80

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Solution

The fourth proportional to 1,010,804.80, 1,515,769.80 and 411,566.80 is: 617,172.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,010,804.80 : 1,515,769.80 = 411,566.80 : x
  2. Step 2: Convert to fraction form
    1,010,804.80/1,515,769.80 = 411,566.80/x
  3. Step 3: Cross multiply
    1,010,804.80x = 1,515,769.80 × 411,566.80
  4. Step 4: Simplify right side
    1,010,804.80x = 623,840,526,122.64
  5. Step 5: Solve for x
    x = 623,840,526,122.64/1,010,804.80
  6. Step 6: Final answer
    x = 617,172.10

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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.