Home / 915,346.06-1,372,957.50-316,315.42

Finding the Fourth Proportional to 915,346.06, 1,372,957.50 and 316,315.42

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Solution

The fourth proportional to 915,346.06, 1,372,957.50 and 316,315.42 is: 474,451.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,346.06 : 1,372,957.50 = 316,315.42 : x
  2. Step 2: Convert to fraction form
    915,346.06/1,372,957.50 = 316,315.42/x
  3. Step 3: Cross multiply
    915,346.06x = 1,372,957.50 × 316,315.42
  4. Step 4: Simplify right side
    915,346.06x = 434,287,628,254.65
  5. Step 5: Solve for x
    x = 434,287,628,254.65/915,346.06
  6. Step 6: Final answer
    x = 474,451.85

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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.