Home / 1,152,623.08-1,590,473.13-643,346.92

Finding the Fourth Proportional to 1,152,623.08, 1,590,473.13 and 643,346.92

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Solution

The fourth proportional to 1,152,623.08, 1,590,473.13 and 643,346.92 is: 887,736.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,623.08 : 1,590,473.13 = 643,346.92 : x
  2. Step 2: Convert to fraction form
    1,152,623.08/1,590,473.13 = 643,346.92/x
  3. Step 3: Cross multiply
    1,152,623.08x = 1,590,473.13 × 643,346.92
  4. Step 4: Simplify right side
    1,152,623.08x = 1,023,225,989,528.26
  5. Step 5: Solve for x
    x = 1,023,225,989,528.26/1,152,623.08
  6. Step 6: Final answer
    x = 887,736.86

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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.