Home / 909,752.65-1,255,071.41-667,614.49

Finding the Fourth Proportional to 909,752.65, 1,255,071.41 and 667,614.49

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Solution

The fourth proportional to 909,752.65, 1,255,071.41 and 667,614.49 is: 921,023.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,752.65 : 1,255,071.41 = 667,614.49 : x
  2. Step 2: Convert to fraction form
    909,752.65/1,255,071.41 = 667,614.49/x
  3. Step 3: Cross multiply
    909,752.65x = 1,255,071.41 × 667,614.49
  4. Step 4: Simplify right side
    909,752.65x = 837,903,855,328.53
  5. Step 5: Solve for x
    x = 837,903,855,328.53/909,752.65
  6. Step 6: Final answer
    x = 921,023.82

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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.