Home / 729,272.90-1,006,412.72-402,585.14

Finding the Fourth Proportional to 729,272.90, 1,006,412.72 and 402,585.14

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Solution

The fourth proportional to 729,272.90, 1,006,412.72 and 402,585.14 is: 555,576.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,272.90 : 1,006,412.72 = 402,585.14 : x
  2. Step 2: Convert to fraction form
    729,272.90/1,006,412.72 = 402,585.14/x
  3. Step 3: Cross multiply
    729,272.90x = 1,006,412.72 × 402,585.14
  4. Step 4: Simplify right side
    729,272.90x = 405,166,798,733.99
  5. Step 5: Solve for x
    x = 405,166,798,733.99/729,272.90
  6. Step 6: Final answer
    x = 555,576.38

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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.