Home / 1,220,980.20-1,822,577.63-1,130,930.47

Finding the Fourth Proportional to 1,220,980.20, 1,822,577.63 and 1,130,930.47

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Solution

The fourth proportional to 1,220,980.20, 1,822,577.63 and 1,130,930.47 is: 1,688,158.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,980.20 : 1,822,577.63 = 1,130,930.47 : x
  2. Step 2: Convert to fraction form
    1,220,980.20/1,822,577.63 = 1,130,930.47/x
  3. Step 3: Cross multiply
    1,220,980.20x = 1,822,577.63 × 1,130,930.47
  4. Step 4: Simplify right side
    1,220,980.20x = 2,061,208,575,707.39
  5. Step 5: Solve for x
    x = 2,061,208,575,707.39/1,220,980.20
  6. Step 6: Final answer
    x = 1,688,158.89

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.