Home / 1,013,969.20-1,399,402.56-578,493.76

Finding the Fourth Proportional to 1,013,969.20, 1,399,402.56 and 578,493.76

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Solution

The fourth proportional to 1,013,969.20, 1,399,402.56 and 578,493.76 is: 798,392.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,013,969.20 : 1,399,402.56 = 578,493.76 : x
  2. Step 2: Convert to fraction form
    1,013,969.20/1,399,402.56 = 578,493.76/x
  3. Step 3: Cross multiply
    1,013,969.20x = 1,399,402.56 × 578,493.76
  4. Step 4: Simplify right side
    1,013,969.20x = 809,545,648,688.03
  5. Step 5: Solve for x
    x = 809,545,648,688.03/1,013,969.20
  6. Step 6: Final answer
    x = 798,392.74

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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.