Home / 1,152,649.88-1,590,673.23-643,352.25

Finding the Fourth Proportional to 1,152,649.88, 1,590,673.23 and 643,352.25

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Solution

The fourth proportional to 1,152,649.88, 1,590,673.23 and 643,352.25 is: 887,835.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,649.88 : 1,590,673.23 = 643,352.25 : x
  2. Step 2: Convert to fraction form
    1,152,649.88/1,590,673.23 = 643,352.25/x
  3. Step 3: Cross multiply
    1,152,649.88x = 1,590,673.23 × 643,352.25
  4. Step 4: Simplify right side
    1,152,649.88x = 1,023,363,201,535.27
  5. Step 5: Solve for x
    x = 1,023,363,201,535.27/1,152,649.88
  6. Step 6: Final answer
    x = 887,835.26

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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.