Home / 1,009,938.91-1,392,455.10-646,765.69

Finding the Fourth Proportional to 1,009,938.91, 1,392,455.10 and 646,765.69

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Solution

The fourth proportional to 1,009,938.91, 1,392,455.10 and 646,765.69 is: 891,729.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,009,938.91 : 1,392,455.10 = 646,765.69 : x
  2. Step 2: Convert to fraction form
    1,009,938.91/1,392,455.10 = 646,765.69/x
  3. Step 3: Cross multiply
    1,009,938.91x = 1,392,455.10 × 646,765.69
  4. Step 4: Simplify right side
    1,009,938.91x = 900,592,183,545.52
  5. Step 5: Solve for x
    x = 900,592,183,545.52/1,009,938.91
  6. Step 6: Final answer
    x = 891,729.37

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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.