Home / 707,981.46-1,061,334.51-258,386.86

Finding the Fourth Proportional to 707,981.46, 1,061,334.51 and 258,386.86

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Solution

The fourth proportional to 707,981.46, 1,061,334.51 and 258,386.86 is: 387,347.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,981.46 : 1,061,334.51 = 258,386.86 : x
  2. Step 2: Convert to fraction form
    707,981.46/1,061,334.51 = 258,386.86/x
  3. Step 3: Cross multiply
    707,981.46x = 1,061,334.51 × 258,386.86
  4. Step 4: Simplify right side
    707,981.46x = 274,234,891,448.54
  5. Step 5: Solve for x
    x = 274,234,891,448.54/707,981.46
  6. Step 6: Final answer
    x = 387,347.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.