Home / 1,515,500.36-2,091,386.20-836,432

Finding the Fourth Proportional to 1,515,500.36, 2,091,386.20 and 836,432

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Solution

The fourth proportional to 1,515,500.36, 2,091,386.20 and 836,432 is: 1,154,273.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515,500.36 : 2,091,386.20 = 836,432 : x
  2. Step 2: Convert to fraction form
    1,515,500.36/2,091,386.20 = 836,432/x
  3. Step 3: Cross multiply
    1,515,500.36x = 2,091,386.20 × 836,432
  4. Step 4: Simplify right side
    1,515,500.36x = 1,749,302,342,038.40
  5. Step 5: Solve for x
    x = 1,749,302,342,038.40/1,515,500.36
  6. Step 6: Final answer
    x = 1,154,273.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.