Home / 1,152,174.90-1,590,000.36-642,877.26

Finding the Fourth Proportional to 1,152,174.90, 1,590,000.36 and 642,877.26

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Solution

The fourth proportional to 1,152,174.90, 1,590,000.36 and 642,877.26 is: 887,170.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,174.90 : 1,590,000.36 = 642,877.26 : x
  2. Step 2: Convert to fraction form
    1,152,174.90/1,590,000.36 = 642,877.26/x
  3. Step 3: Cross multiply
    1,152,174.90x = 1,590,000.36 × 642,877.26
  4. Step 4: Simplify right side
    1,152,174.90x = 1,022,175,074,835.81
  5. Step 5: Solve for x
    x = 1,022,175,074,835.81/1,152,174.90
  6. Step 6: Final answer
    x = 887,170.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.