Home / 711,795.92-982,278.32-389,506.04

Finding the Fourth Proportional to 711,795.92, 982,278.32 and 389,506.04

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Solution

The fourth proportional to 711,795.92, 982,278.32 and 389,506.04 is: 537,518.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,795.92 : 982,278.32 = 389,506.04 : x
  2. Step 2: Convert to fraction form
    711,795.92/982,278.32 = 389,506.04/x
  3. Step 3: Cross multiply
    711,795.92x = 982,278.32 × 389,506.04
  4. Step 4: Simplify right side
    711,795.92x = 382,603,338,601.05
  5. Step 5: Solve for x
    x = 382,603,338,601.05/711,795.92
  6. Step 6: Final answer
    x = 537,518.31

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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.