Home / 1,209,038.13-1,668,472.54-665,162.24

Finding the Fourth Proportional to 1,209,038.13, 1,668,472.54 and 665,162.24

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Solution

The fourth proportional to 1,209,038.13, 1,668,472.54 and 665,162.24 is: 917,923.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,038.13 : 1,668,472.54 = 665,162.24 : x
  2. Step 2: Convert to fraction form
    1,209,038.13/1,668,472.54 = 665,162.24/x
  3. Step 3: Cross multiply
    1,209,038.13x = 1,668,472.54 × 665,162.24
  4. Step 4: Simplify right side
    1,209,038.13x = 1,109,804,932,084.89
  5. Step 5: Solve for x
    x = 1,109,804,932,084.89/1,209,038.13
  6. Step 6: Final answer
    x = 917,923.85

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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.