Home / 931,981.65-1,397,970.13-258,060.71

Finding the Fourth Proportional to 931,981.65, 1,397,970.13 and 258,060.71

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Solution

The fourth proportional to 931,981.65, 1,397,970.13 and 258,060.71 is: 387,090.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,981.65 : 1,397,970.13 = 258,060.71 : x
  2. Step 2: Convert to fraction form
    931,981.65/1,397,970.13 = 258,060.71/x
  3. Step 3: Cross multiply
    931,981.65x = 1,397,970.13 × 258,060.71
  4. Step 4: Simplify right side
    931,981.65x = 360,761,164,306.59
  5. Step 5: Solve for x
    x = 360,761,164,306.59/931,981.65
  6. Step 6: Final answer
    x = 387,090.42

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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.