Home / 771,128.10-1,156,346.55-350,187.30

Finding the Fourth Proportional to 771,128.10, 1,156,346.55 and 350,187.30

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Solution

The fourth proportional to 771,128.10, 1,156,346.55 and 350,187.30 is: 525,124.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,128.10 : 1,156,346.55 = 350,187.30 : x
  2. Step 2: Convert to fraction form
    771,128.10/1,156,346.55 = 350,187.30/x
  3. Step 3: Cross multiply
    771,128.10x = 1,156,346.55 × 350,187.30
  4. Step 4: Simplify right side
    771,128.10x = 404,937,876,208.82
  5. Step 5: Solve for x
    x = 404,937,876,208.82/771,128.10
  6. Step 6: Final answer
    x = 525,124.00

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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.