Home / 1,531,403.32-2,295,685.40-678,020.28

Finding the Fourth Proportional to 1,531,403.32, 2,295,685.40 and 678,020.28

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Solution

The fourth proportional to 1,531,403.32, 2,295,685.40 and 678,020.28 is: 1,016,401.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,531,403.32 : 2,295,685.40 = 678,020.28 : x
  2. Step 2: Convert to fraction form
    1,531,403.32/2,295,685.40 = 678,020.28/x
  3. Step 3: Cross multiply
    1,531,403.32x = 2,295,685.40 × 678,020.28
  4. Step 4: Simplify right side
    1,531,403.32x = 1,556,521,257,699.91
  5. Step 5: Solve for x
    x = 1,556,521,257,699.91/1,531,403.32
  6. Step 6: Final answer
    x = 1,016,401.91

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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.