Home / 1,004,859.84-1,386,357.54-642,495.80

Finding the Fourth Proportional to 1,004,859.84, 1,386,357.54 and 642,495.80

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Solution

The fourth proportional to 1,004,859.84, 1,386,357.54 and 642,495.80 is: 886,421.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,004,859.84 : 1,386,357.54 = 642,495.80 : x
  2. Step 2: Convert to fraction form
    1,004,859.84/1,386,357.54 = 642,495.80/x
  3. Step 3: Cross multiply
    1,004,859.84x = 1,386,357.54 × 642,495.80
  4. Step 4: Simplify right side
    1,004,859.84x = 890,728,896,748.33
  5. Step 5: Solve for x
    x = 890,728,896,748.33/1,004,859.84
  6. Step 6: Final answer
    x = 886,421.03

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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.