Home / 821,641.65-1,232,462.48-551,036.85

Finding the Fourth Proportional to 821,641.65, 1,232,462.48 and 551,036.85

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Solution

The fourth proportional to 821,641.65, 1,232,462.48 and 551,036.85 is: 826,555.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,641.65 : 1,232,462.48 = 551,036.85 : x
  2. Step 2: Convert to fraction form
    821,641.65/1,232,462.48 = 551,036.85/x
  3. Step 3: Cross multiply
    821,641.65x = 1,232,462.48 × 551,036.85
  4. Step 4: Simplify right side
    821,641.65x = 679,132,239,967.20
  5. Step 5: Solve for x
    x = 679,132,239,967.20/821,641.65
  6. Step 6: Final answer
    x = 826,555.28

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Double scale
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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.