Home / 743,421.42-1,025,926.47-403,889.58

Finding the Fourth Proportional to 743,421.42, 1,025,926.47 and 403,889.58

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Solution

The fourth proportional to 743,421.42, 1,025,926.47 and 403,889.58 is: 557,370.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,421.42 : 1,025,926.47 = 403,889.58 : x
  2. Step 2: Convert to fraction form
    743,421.42/1,025,926.47 = 403,889.58/x
  3. Step 3: Cross multiply
    743,421.42x = 1,025,926.47 × 403,889.58
  4. Step 4: Simplify right side
    743,421.42x = 414,361,011,079.18
  5. Step 5: Solve for x
    x = 414,361,011,079.18/743,421.42
  6. Step 6: Final answer
    x = 557,370.29

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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.