Home / 1,070,415.37-1,605,223.01-430,503.12

Finding the Fourth Proportional to 1,070,415.37, 1,605,223.01 and 430,503.12

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Solution

The fourth proportional to 1,070,415.37, 1,605,223.01 and 430,503.12 is: 645,593.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,070,415.37 : 1,605,223.01 = 430,503.12 : x
  2. Step 2: Convert to fraction form
    1,070,415.37/1,605,223.01 = 430,503.12/x
  3. Step 3: Cross multiply
    1,070,415.37x = 1,605,223.01 × 430,503.12
  4. Step 4: Simplify right side
    1,070,415.37x = 691,053,514,100.79
  5. Step 5: Solve for x
    x = 691,053,514,100.79/1,070,415.37
  6. Step 6: Final answer
    x = 645,593.79

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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.