Home / 985,362.31-1,360,472.35-637,346.30

Finding the Fourth Proportional to 985,362.31, 1,360,472.35 and 637,346.30

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Solution

The fourth proportional to 985,362.31, 1,360,472.35 and 637,346.30 is: 879,972.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,362.31 : 1,360,472.35 = 637,346.30 : x
  2. Step 2: Convert to fraction form
    985,362.31/1,360,472.35 = 637,346.30/x
  3. Step 3: Cross multiply
    985,362.31x = 1,360,472.35 × 637,346.30
  4. Step 4: Simplify right side
    985,362.31x = 867,092,015,338.07
  5. Step 5: Solve for x
    x = 867,092,015,338.07/985,362.31
  6. Step 6: Final answer
    x = 879,972.79

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1.5x scale

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.