Home / 1,535,272.47-2,117,991.20-890,319.18

Finding the Fourth Proportional to 1,535,272.47, 2,117,991.20 and 890,319.18

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Solution

The fourth proportional to 1,535,272.47, 2,117,991.20 and 890,319.18 is: 1,228,243.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,535,272.47 : 2,117,991.20 = 890,319.18 : x
  2. Step 2: Convert to fraction form
    1,535,272.47/2,117,991.20 = 890,319.18/x
  3. Step 3: Cross multiply
    1,535,272.47x = 2,117,991.20 × 890,319.18
  4. Step 4: Simplify right side
    1,535,272.47x = 1,885,688,188,431.22
  5. Step 5: Solve for x
    x = 1,885,688,188,431.22/1,535,272.47
  6. Step 6: Final answer
    x = 1,228,243.34

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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.