Home / 725,308.63-1,000,881.90-403,007.69

Finding the Fourth Proportional to 725,308.63, 1,000,881.90 and 403,007.69

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Solution

The fourth proportional to 725,308.63, 1,000,881.90 and 403,007.69 is: 556,126.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,308.63 : 1,000,881.90 = 403,007.69 : x
  2. Step 2: Convert to fraction form
    725,308.63/1,000,881.90 = 403,007.69/x
  3. Step 3: Cross multiply
    725,308.63x = 1,000,881.90 × 403,007.69
  4. Step 4: Simplify right side
    725,308.63x = 403,363,104,984.02
  5. Step 5: Solve for x
    x = 403,363,104,984.02/725,308.63
  6. Step 6: Final answer
    x = 556,126.16

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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.