Home / 1,531,402.32-2,295,683.90-678,019.28

Finding the Fourth Proportional to 1,531,402.32, 2,295,683.90 and 678,019.28

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Solution

The fourth proportional to 1,531,402.32, 2,295,683.90 and 678,019.28 is: 1,016,400.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,531,402.32 : 2,295,683.90 = 678,019.28 : x
  2. Step 2: Convert to fraction form
    1,531,402.32/2,295,683.90 = 678,019.28/x
  3. Step 3: Cross multiply
    1,531,402.32x = 2,295,683.90 × 678,019.28
  4. Step 4: Simplify right side
    1,531,402.32x = 1,556,517,944,985.59
  5. Step 5: Solve for x
    x = 1,556,517,944,985.59/1,531,402.32
  6. Step 6: Final answer
    x = 1,016,400.41

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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.