Home / 1,152,623.57-1,590,473.81-643,347.41

Finding the Fourth Proportional to 1,152,623.57, 1,590,473.81 and 643,347.41

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Solution

The fourth proportional to 1,152,623.57, 1,590,473.81 and 643,347.41 is: 887,737.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,623.57 : 1,590,473.81 = 643,347.41 : x
  2. Step 2: Convert to fraction form
    1,152,623.57/1,590,473.81 = 643,347.41/x
  3. Step 3: Cross multiply
    1,152,623.57x = 1,590,473.81 × 643,347.41
  4. Step 4: Simplify right side
    1,152,623.57x = 1,023,227,199,992.33
  5. Step 5: Solve for x
    x = 1,023,227,199,992.33/1,152,623.57
  6. Step 6: Final answer
    x = 887,737.53

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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.