Home / 1,018,547.64-1,405,104.30-678,580.92

Finding the Fourth Proportional to 1,018,547.64, 1,405,104.30 and 678,580.92

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Solution

The fourth proportional to 1,018,547.64, 1,405,104.30 and 678,580.92 is: 936,114.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,547.64 : 1,405,104.30 = 678,580.92 : x
  2. Step 2: Convert to fraction form
    1,018,547.64/1,405,104.30 = 678,580.92/x
  3. Step 3: Cross multiply
    1,018,547.64x = 1,405,104.30 × 678,580.92
  4. Step 4: Simplify right side
    1,018,547.64x = 953,476,968,589.96
  5. Step 5: Solve for x
    x = 953,476,968,589.96/1,018,547.64
  6. Step 6: Final answer
    x = 936,114.26

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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.