Home / 1,187,001.47-1,637,158.19-1,021,710.74

Finding the Fourth Proportional to 1,187,001.47, 1,637,158.19 and 1,021,710.74

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Solution

The fourth proportional to 1,187,001.47, 1,637,158.19 and 1,021,710.74 is: 1,409,182.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,001.47 : 1,637,158.19 = 1,021,710.74 : x
  2. Step 2: Convert to fraction form
    1,187,001.47/1,637,158.19 = 1,021,710.74/x
  3. Step 3: Cross multiply
    1,187,001.47x = 1,637,158.19 × 1,021,710.74
  4. Step 4: Simplify right side
    1,187,001.47x = 1,672,702,092,507.62
  5. Step 5: Solve for x
    x = 1,672,702,092,507.62/1,187,001.47
  6. Step 6: Final answer
    x = 1,409,182.83

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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.