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Finding the Fourth Proportional to 1,010,808.80, 1,515,775.80 and 411,570.80

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Solution

The fourth proportional to 1,010,808.80, 1,515,775.80 and 411,570.80 is: 617,178.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,010,808.80 : 1,515,775.80 = 411,570.80 : x
  2. Step 2: Convert to fraction form
    1,010,808.80/1,515,775.80 = 411,570.80/x
  3. Step 3: Cross multiply
    1,010,808.80x = 1,515,775.80 × 411,570.80
  4. Step 4: Simplify right side
    1,010,808.80x = 623,849,058,626.64
  5. Step 5: Solve for x
    x = 623,849,058,626.64/1,010,808.80
  6. Step 6: Final answer
    x = 617,178.10

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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.