Home / 1,202,820.63-1,658,562.57-766,547.21

Finding the Fourth Proportional to 1,202,820.63, 1,658,562.57 and 766,547.21

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Solution

The fourth proportional to 1,202,820.63, 1,658,562.57 and 766,547.21 is: 1,056,987.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,202,820.63 : 1,658,562.57 = 766,547.21 : x
  2. Step 2: Convert to fraction form
    1,202,820.63/1,658,562.57 = 766,547.21/x
  3. Step 3: Cross multiply
    1,202,820.63x = 1,658,562.57 × 766,547.21
  4. Step 4: Simplify right side
    1,202,820.63x = 1,271,366,502,351.12
  5. Step 5: Solve for x
    x = 1,271,366,502,351.12/1,202,820.63
  6. Step 6: Final answer
    x = 1,056,987.61

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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.