Home / 1,079,409.76-1,490,908.08-808,688.32

Finding the Fourth Proportional to 1,079,409.76, 1,490,908.08 and 808,688.32

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Solution

The fourth proportional to 1,079,409.76, 1,490,908.08 and 808,688.32 is: 1,116,980.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,409.76 : 1,490,908.08 = 808,688.32 : x
  2. Step 2: Convert to fraction form
    1,079,409.76/1,490,908.08 = 808,688.32/x
  3. Step 3: Cross multiply
    1,079,409.76x = 1,490,908.08 × 808,688.32
  4. Step 4: Simplify right side
    1,079,409.76x = 1,205,679,950,489.63
  5. Step 5: Solve for x
    x = 1,205,679,950,489.63/1,079,409.76
  6. Step 6: Final answer
    x = 1,116,980.78

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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.