Home / 1,125,981.22-1,688,622.56-406,229.35

Finding the Fourth Proportional to 1,125,981.22, 1,688,622.56 and 406,229.35

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Solution

The fourth proportional to 1,125,981.22, 1,688,622.56 and 406,229.35 is: 609,218.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125,981.22 : 1,688,622.56 = 406,229.35 : x
  2. Step 2: Convert to fraction form
    1,125,981.22/1,688,622.56 = 406,229.35/x
  3. Step 3: Cross multiply
    1,125,981.22x = 1,688,622.56 × 406,229.35
  4. Step 4: Simplify right side
    1,125,981.22x = 685,968,044,944.14
  5. Step 5: Solve for x
    x = 685,968,044,944.14/1,125,981.22
  6. Step 6: Final answer
    x = 609,218.02

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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.