Home / 1,070,475.35-1,605,777.87-430,776.63

Finding the Fourth Proportional to 1,070,475.35, 1,605,777.87 and 430,776.63

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Solution

The fourth proportional to 1,070,475.35, 1,605,777.87 and 430,776.63 is: 646,191.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,070,475.35 : 1,605,777.87 = 430,776.63 : x
  2. Step 2: Convert to fraction form
    1,070,475.35/1,605,777.87 = 430,776.63/x
  3. Step 3: Cross multiply
    1,070,475.35x = 1,605,777.87 × 430,776.63
  4. Step 4: Simplify right side
    1,070,475.35x = 691,731,580,982.59
  5. Step 5: Solve for x
    x = 691,731,580,982.59/1,070,475.35
  6. Step 6: Final answer
    x = 646,191.04

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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.