Home / 1,021,056.14-1,531,812.64-311,139.74

Finding the Fourth Proportional to 1,021,056.14, 1,531,812.64 and 311,139.74

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Solution

The fourth proportional to 1,021,056.14, 1,531,812.64 and 311,139.74 is: 466,779.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,056.14 : 1,531,812.64 = 311,139.74 : x
  2. Step 2: Convert to fraction form
    1,021,056.14/1,531,812.64 = 311,139.74/x
  3. Step 3: Cross multiply
    1,021,056.14x = 1,531,812.64 × 311,139.74
  4. Step 4: Simplify right side
    1,021,056.14x = 476,607,786,538.31
  5. Step 5: Solve for x
    x = 476,607,786,538.31/1,021,056.14
  6. Step 6: Final answer
    x = 466,779.22

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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.