Home / 1,265,115-1,897,215.60-507,129.96

Finding the Fourth Proportional to 1,265,115, 1,897,215.60 and 507,129.96

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Solution

The fourth proportional to 1,265,115, 1,897,215.60 and 507,129.96 is: 760,511.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265,115 : 1,897,215.60 = 507,129.96 : x
  2. Step 2: Convert to fraction form
    1,265,115/1,897,215.60 = 507,129.96/x
  3. Step 3: Cross multiply
    1,265,115x = 1,897,215.60 × 507,129.96
  4. Step 4: Simplify right side
    1,265,115x = 962,134,871,339.38
  5. Step 5: Solve for x
    x = 962,134,871,339.38/1,265,115
  6. Step 6: Final answer
    x = 760,511.79

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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.