Home / 987,001.61-1,362,071.61-579,110.39

Finding the Fourth Proportional to 987,001.61, 1,362,071.61 and 579,110.39

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Solution

The fourth proportional to 987,001.61, 1,362,071.61 and 579,110.39 is: 799,177.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,001.61 : 1,362,071.61 = 579,110.39 : x
  2. Step 2: Convert to fraction form
    987,001.61/1,362,071.61 = 579,110.39/x
  3. Step 3: Cross multiply
    987,001.61x = 1,362,071.61 × 579,110.39
  4. Step 4: Simplify right side
    987,001.61x = 788,789,811,569.12
  5. Step 5: Solve for x
    x = 788,789,811,569.12/987,001.61
  6. Step 6: Final answer
    x = 799,177.84

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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.