Home / 1,067,490.03-1,472,990.70-637,678.92

Finding the Fourth Proportional to 1,067,490.03, 1,472,990.70 and 637,678.92

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Solution

The fourth proportional to 1,067,490.03, 1,472,990.70 and 637,678.92 is: 879,909.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,067,490.03 : 1,472,990.70 = 637,678.92 : x
  2. Step 2: Convert to fraction form
    1,067,490.03/1,472,990.70 = 637,678.92/x
  3. Step 3: Cross multiply
    1,067,490.03x = 1,472,990.70 × 637,678.92
  4. Step 4: Simplify right side
    1,067,490.03x = 939,295,118,746.04
  5. Step 5: Solve for x
    x = 939,295,118,746.04/1,067,490.03
  6. Step 6: Final answer
    x = 879,909.97

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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.