Home / 1,122,538.60-1,683,807.90-648,980.20

Finding the Fourth Proportional to 1,122,538.60, 1,683,807.90 and 648,980.20

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Solution

The fourth proportional to 1,122,538.60, 1,683,807.90 and 648,980.20 is: 973,470.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,538.60 : 1,683,807.90 = 648,980.20 : x
  2. Step 2: Convert to fraction form
    1,122,538.60/1,683,807.90 = 648,980.20/x
  3. Step 3: Cross multiply
    1,122,538.60x = 1,683,807.90 × 648,980.20
  4. Step 4: Simplify right side
    1,122,538.60x = 1,092,757,987,703.58
  5. Step 5: Solve for x
    x = 1,092,757,987,703.58/1,122,538.60
  6. Step 6: Final answer
    x = 973,470.30

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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.