Home / 913,784.26-1,369,656.86-381,128.26

Finding the Fourth Proportional to 913,784.26, 1,369,656.86 and 381,128.26

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Solution

The fourth proportional to 913,784.26, 1,369,656.86 and 381,128.26 is: 571,267.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,784.26 : 1,369,656.86 = 381,128.26 : x
  2. Step 2: Convert to fraction form
    913,784.26/1,369,656.86 = 381,128.26/x
  3. Step 3: Cross multiply
    913,784.26x = 1,369,656.86 × 381,128.26
  4. Step 4: Simplify right side
    913,784.26x = 522,014,935,848.86
  5. Step 5: Solve for x
    x = 522,014,935,848.86/913,784.26
  6. Step 6: Final answer
    x = 571,267.16

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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.