Home / 1,209,003.19-1,668,424.37-665,127.29

Finding the Fourth Proportional to 1,209,003.19, 1,668,424.37 and 665,127.29

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Solution

The fourth proportional to 1,209,003.19, 1,668,424.37 and 665,127.29 is: 917,875.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,003.19 : 1,668,424.37 = 665,127.29 : x
  2. Step 2: Convert to fraction form
    1,209,003.19/1,668,424.37 = 665,127.29/x
  3. Step 3: Cross multiply
    1,209,003.19x = 1,668,424.37 × 665,127.29
  4. Step 4: Simplify right side
    1,209,003.19x = 1,109,714,580,633.48
  5. Step 5: Solve for x
    x = 1,109,714,580,633.48/1,209,003.19
  6. Step 6: Final answer
    x = 917,875.65

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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.