Home / 1,155,999.90-1,733,999.85-918,054.30

Finding the Fourth Proportional to 1,155,999.90, 1,733,999.85 and 918,054.30

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Solution

The fourth proportional to 1,155,999.90, 1,733,999.85 and 918,054.30 is: 1,377,081.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155,999.90 : 1,733,999.85 = 918,054.30 : x
  2. Step 2: Convert to fraction form
    1,155,999.90/1,733,999.85 = 918,054.30/x
  3. Step 3: Cross multiply
    1,155,999.90x = 1,733,999.85 × 918,054.30
  4. Step 4: Simplify right side
    1,155,999.90x = 1,591,906,018,491.86
  5. Step 5: Solve for x
    x = 1,591,906,018,491.86/1,155,999.90
  6. Step 6: Final answer
    x = 1,377,081.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.