Home / 711,810.92-982,299.16-389,521.08

Finding the Fourth Proportional to 711,810.92, 982,299.16 and 389,521.08

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Solution

The fourth proportional to 711,810.92, 982,299.16 and 389,521.08 is: 537,539.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,810.92 : 982,299.16 = 389,521.08 : x
  2. Step 2: Convert to fraction form
    711,810.92/982,299.16 = 389,521.08/x
  3. Step 3: Cross multiply
    711,810.92x = 982,299.16 × 389,521.08
  4. Step 4: Simplify right side
    711,810.92x = 382,626,229,686.29
  5. Step 5: Solve for x
    x = 382,626,229,686.29/711,810.92
  6. Step 6: Final answer
    x = 537,539.14

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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.