Home / 1,012,898.31-1,398,230.06-631,113.72

Finding the Fourth Proportional to 1,012,898.31, 1,398,230.06 and 631,113.72

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Solution

The fourth proportional to 1,012,898.31, 1,398,230.06 and 631,113.72 is: 871,205.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,012,898.31 : 1,398,230.06 = 631,113.72 : x
  2. Step 2: Convert to fraction form
    1,012,898.31/1,398,230.06 = 631,113.72/x
  3. Step 3: Cross multiply
    1,012,898.31x = 1,398,230.06 × 631,113.72
  4. Step 4: Simplify right side
    1,012,898.31x = 882,442,174,582.42
  5. Step 5: Solve for x
    x = 882,442,174,582.42/1,012,898.31
  6. Step 6: Final answer
    x = 871,205.10

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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.