Home / 1,580,832-2,181,548.16-865,440

Finding the Fourth Proportional to 1,580,832, 2,181,548.16 and 865,440

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Solution

The fourth proportional to 1,580,832, 2,181,548.16 and 865,440 is: 1,194,307.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,580,832 : 2,181,548.16 = 865,440 : x
  2. Step 2: Convert to fraction form
    1,580,832/2,181,548.16 = 865,440/x
  3. Step 3: Cross multiply
    1,580,832x = 2,181,548.16 × 865,440
  4. Step 4: Simplify right side
    1,580,832x = 1,887,999,039,590.40
  5. Step 5: Solve for x
    x = 1,887,999,039,590.40/1,580,832
  6. Step 6: Final answer
    x = 1,194,307.20

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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.