Home / 1,152,573.20-1,590,536.68-636,331.28

Finding the Fourth Proportional to 1,152,573.20, 1,590,536.68 and 636,331.28

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Solution

The fourth proportional to 1,152,573.20, 1,590,536.68 and 636,331.28 is: 878,129.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,573.20 : 1,590,536.68 = 636,331.28 : x
  2. Step 2: Convert to fraction form
    1,152,573.20/1,590,536.68 = 636,331.28/x
  3. Step 3: Cross multiply
    1,152,573.20x = 1,590,536.68 × 636,331.28
  4. Step 4: Simplify right side
    1,152,573.20x = 1,012,108,241,471.35
  5. Step 5: Solve for x
    x = 1,012,108,241,471.35/1,152,573.20
  6. Step 6: Final answer
    x = 878,129.25

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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.