Home / 771,673.04-1,157,264.38-721,297.89

Finding the Fourth Proportional to 771,673.04, 1,157,264.38 and 721,297.89

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Solution

The fourth proportional to 771,673.04, 1,157,264.38 and 721,297.89 is: 1,081,717.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,673.04 : 1,157,264.38 = 721,297.89 : x
  2. Step 2: Convert to fraction form
    771,673.04/1,157,264.38 = 721,297.89/x
  3. Step 3: Cross multiply
    771,673.04x = 1,157,264.38 × 721,297.89
  4. Step 4: Simplify right side
    771,673.04x = 834,732,350,069.96
  5. Step 5: Solve for x
    x = 834,732,350,069.96/771,673.04
  6. Step 6: Final answer
    x = 1,081,717.65

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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.