Home / 1,185,301.47-1,635,715.95-641,437.20

Finding the Fourth Proportional to 1,185,301.47, 1,635,715.95 and 641,437.20

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Solution

The fourth proportional to 1,185,301.47, 1,635,715.95 and 641,437.20 is: 885,183.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,301.47 : 1,635,715.95 = 641,437.20 : x
  2. Step 2: Convert to fraction form
    1,185,301.47/1,635,715.95 = 641,437.20/x
  3. Step 3: Cross multiply
    1,185,301.47x = 1,635,715.95 × 641,437.20
  4. Step 4: Simplify right side
    1,185,301.47x = 1,049,209,058,963.34
  5. Step 5: Solve for x
    x = 1,049,209,058,963.34/1,185,301.47
  6. Step 6: Final answer
    x = 885,183.29

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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.