Home / 1,018,698.09-1,405,217.91-636,060.57

Finding the Fourth Proportional to 1,018,698.09, 1,405,217.91 and 636,060.57

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Solution

The fourth proportional to 1,018,698.09, 1,405,217.91 and 636,060.57 is: 877,398.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,698.09 : 1,405,217.91 = 636,060.57 : x
  2. Step 2: Convert to fraction form
    1,018,698.09/1,405,217.91 = 636,060.57/x
  3. Step 3: Cross multiply
    1,018,698.09x = 1,405,217.91 × 636,060.57
  4. Step 4: Simplify right side
    1,018,698.09x = 893,803,704,808.81
  5. Step 5: Solve for x
    x = 893,803,704,808.81/1,018,698.09
  6. Step 6: Final answer
    x = 877,398.04

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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.