Home / 725,298.55-1,000,893.81-403,009.47

Finding the Fourth Proportional to 725,298.55, 1,000,893.81 and 403,009.47

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Solution

The fourth proportional to 725,298.55, 1,000,893.81 and 403,009.47 is: 556,142.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,298.55 : 1,000,893.81 = 403,009.47 : x
  2. Step 2: Convert to fraction form
    725,298.55/1,000,893.81 = 403,009.47/x
  3. Step 3: Cross multiply
    725,298.55x = 1,000,893.81 × 403,009.47
  4. Step 4: Simplify right side
    725,298.55x = 403,369,685,405.67
  5. Step 5: Solve for x
    x = 403,369,685,405.67/725,298.55
  6. Step 6: Final answer
    x = 556,142.97

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1.5x scale

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.