Home / 896,690.63-1,344,101.72-391,115.86

Finding the Fourth Proportional to 896,690.63, 1,344,101.72 and 391,115.86

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Solution

The fourth proportional to 896,690.63, 1,344,101.72 and 391,115.86 is: 586,266.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    896,690.63 : 1,344,101.72 = 391,115.86 : x
  2. Step 2: Convert to fraction form
    896,690.63/1,344,101.72 = 391,115.86/x
  3. Step 3: Cross multiply
    896,690.63x = 1,344,101.72 × 391,115.86
  4. Step 4: Simplify right side
    896,690.63x = 525,699,500,145.28
  5. Step 5: Solve for x
    x = 525,699,500,145.28/896,690.63
  6. Step 6: Final answer
    x = 586,266.30

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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.