Home / 1,130,405.10-1,695,607.65-978,189.90

Finding the Fourth Proportional to 1,130,405.10, 1,695,607.65 and 978,189.90

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Solution

The fourth proportional to 1,130,405.10, 1,695,607.65 and 978,189.90 is: 1,467,284.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,130,405.10 : 1,695,607.65 = 978,189.90 : x
  2. Step 2: Convert to fraction form
    1,130,405.10/1,695,607.65 = 978,189.90/x
  3. Step 3: Cross multiply
    1,130,405.10x = 1,695,607.65 × 978,189.90
  4. Step 4: Simplify right side
    1,130,405.10x = 1,658,626,277,592.74
  5. Step 5: Solve for x
    x = 1,658,626,277,592.74/1,130,405.10
  6. Step 6: Final answer
    x = 1,467,284.85

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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.