Home / 1,398,165.64-1,929,439.75-777,957.04

Finding the Fourth Proportional to 1,398,165.64, 1,929,439.75 and 777,957.04

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Solution

The fourth proportional to 1,398,165.64, 1,929,439.75 and 777,957.04 is: 1,073,564.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,165.64 : 1,929,439.75 = 777,957.04 : x
  2. Step 2: Convert to fraction form
    1,398,165.64/1,929,439.75 = 777,957.04/x
  3. Step 3: Cross multiply
    1,398,165.64x = 1,929,439.75 × 777,957.04
  4. Step 4: Simplify right side
    1,398,165.64x = 1,501,021,236,768.34
  5. Step 5: Solve for x
    x = 1,501,021,236,768.34/1,398,165.64
  6. Step 6: Final answer
    x = 1,073,564.67

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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.