Home / 1,152,622.08-1,590,471.75-643,345.92

Finding the Fourth Proportional to 1,152,622.08, 1,590,471.75 and 643,345.92

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Solution

The fourth proportional to 1,152,622.08, 1,590,471.75 and 643,345.92 is: 887,735.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,622.08 : 1,590,471.75 = 643,345.92 : x
  2. Step 2: Convert to fraction form
    1,152,622.08/1,590,471.75 = 643,345.92/x
  3. Step 3: Cross multiply
    1,152,622.08x = 1,590,471.75 × 643,345.92
  4. Step 4: Simplify right side
    1,152,622.08x = 1,023,223,511,237.76
  5. Step 5: Solve for x
    x = 1,023,223,511,237.76/1,152,622.08
  6. Step 6: Final answer
    x = 887,735.48

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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.