Home / 709,437.60-1,064,530.07-410,128.38

Finding the Fourth Proportional to 709,437.60, 1,064,530.07 and 410,128.38

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Solution

The fourth proportional to 709,437.60, 1,064,530.07 and 410,128.38 is: 615,408.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,437.60 : 1,064,530.07 = 410,128.38 : x
  2. Step 2: Convert to fraction form
    709,437.60/1,064,530.07 = 410,128.38/x
  3. Step 3: Cross multiply
    709,437.60x = 1,064,530.07 × 410,128.38
  4. Step 4: Simplify right side
    709,437.60x = 436,593,991,019.75
  5. Step 5: Solve for x
    x = 436,593,991,019.75/709,437.60
  6. Step 6: Final answer
    x = 615,408.59

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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.