Home / 919,402.80-1,379,104.20-709,450.80

Finding the Fourth Proportional to 919,402.80, 1,379,104.20 and 709,450.80

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Solution

The fourth proportional to 919,402.80, 1,379,104.20 and 709,450.80 is: 1,064,176.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,402.80 : 1,379,104.20 = 709,450.80 : x
  2. Step 2: Convert to fraction form
    919,402.80/1,379,104.20 = 709,450.80/x
  3. Step 3: Cross multiply
    919,402.80x = 1,379,104.20 × 709,450.80
  4. Step 4: Simplify right side
    919,402.80x = 978,406,577,973.36
  5. Step 5: Solve for x
    x = 978,406,577,973.36/919,402.80
  6. Step 6: Final answer
    x = 1,064,176.20

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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.