Home / 672,005.40-1,006,841.70-435,226.20

Finding the Fourth Proportional to 672,005.40, 1,006,841.70 and 435,226.20

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Solution

The fourth proportional to 672,005.40, 1,006,841.70 and 435,226.20 is: 652,083.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,005.40 : 1,006,841.70 = 435,226.20 : x
  2. Step 2: Convert to fraction form
    672,005.40/1,006,841.70 = 435,226.20/x
  3. Step 3: Cross multiply
    672,005.40x = 1,006,841.70 × 435,226.20
  4. Step 4: Simplify right side
    672,005.40x = 438,203,887,092.54
  5. Step 5: Solve for x
    x = 438,203,887,092.54/672,005.40
  6. Step 6: Final answer
    x = 652,083.88

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1.5x scale

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.