Home / 800,726.83-1,104,970.08-478,614.53

Finding the Fourth Proportional to 800,726.83, 1,104,970.08 and 478,614.53

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Solution

The fourth proportional to 800,726.83, 1,104,970.08 and 478,614.53 is: 660,468.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,726.83 : 1,104,970.08 = 478,614.53 : x
  2. Step 2: Convert to fraction form
    800,726.83/1,104,970.08 = 478,614.53/x
  3. Step 3: Cross multiply
    800,726.83x = 1,104,970.08 × 478,614.53
  4. Step 4: Simplify right side
    800,726.83x = 528,854,740,060.49
  5. Step 5: Solve for x
    x = 528,854,740,060.49/800,726.83
  6. Step 6: Final answer
    x = 660,468.37

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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.