Home / 1,987,577.10-2,742,869.52-1,128,151.80

Finding the Fourth Proportional to 1,987,577.10, 2,742,869.52 and 1,128,151.80

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Solution

The fourth proportional to 1,987,577.10, 2,742,869.52 and 1,128,151.80 is: 1,556,856.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987,577.10 : 2,742,869.52 = 1,128,151.80 : x
  2. Step 2: Convert to fraction form
    1,987,577.10/2,742,869.52 = 1,128,151.80/x
  3. Step 3: Cross multiply
    1,987,577.10x = 2,742,869.52 × 1,128,151.80
  4. Step 4: Simplify right side
    1,987,577.10x = 3,094,373,186,153.14
  5. Step 5: Solve for x
    x = 3,094,373,186,153.14/1,987,577.10
  6. Step 6: Final answer
    x = 1,556,856.93

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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.