Home / 1,079,407.76-1,490,905.32-808,686.32

Finding the Fourth Proportional to 1,079,407.76, 1,490,905.32 and 808,686.32

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Solution

The fourth proportional to 1,079,407.76, 1,490,905.32 and 808,686.32 is: 1,116,978.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,407.76 : 1,490,905.32 = 808,686.32 : x
  2. Step 2: Convert to fraction form
    1,079,407.76/1,490,905.32 = 808,686.32/x
  3. Step 3: Cross multiply
    1,079,407.76x = 1,490,905.32 × 808,686.32
  4. Step 4: Simplify right side
    1,079,407.76x = 1,205,674,736,699.22
  5. Step 5: Solve for x
    x = 1,205,674,736,699.22/1,079,407.76
  6. Step 6: Final answer
    x = 1,116,978.01

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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.