Home / 785,430.62-1,178,113.02-252,939.86

Finding the Fourth Proportional to 785,430.62, 1,178,113.02 and 252,939.86

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Solution

The fourth proportional to 785,430.62, 1,178,113.02 and 252,939.86 is: 379,399.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,430.62 : 1,178,113.02 = 252,939.86 : x
  2. Step 2: Convert to fraction form
    785,430.62/1,178,113.02 = 252,939.86/x
  3. Step 3: Cross multiply
    785,430.62x = 1,178,113.02 × 252,939.86
  4. Step 4: Simplify right side
    785,430.62x = 297,991,742,342.98
  5. Step 5: Solve for x
    x = 297,991,742,342.98/785,430.62
  6. Step 6: Final answer
    x = 379,399.19

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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.