Home / 1,209,007.96-1,668,430.92-665,132.02

Finding the Fourth Proportional to 1,209,007.96, 1,668,430.92 and 665,132.02

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Solution

The fourth proportional to 1,209,007.96, 1,668,430.92 and 665,132.02 is: 917,882.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,007.96 : 1,668,430.92 = 665,132.02 : x
  2. Step 2: Convert to fraction form
    1,209,007.96/1,668,430.92 = 665,132.02/x
  3. Step 3: Cross multiply
    1,209,007.96x = 1,668,430.92 × 665,132.02
  4. Step 4: Simplify right side
    1,209,007.96x = 1,109,726,828,050.06
  5. Step 5: Solve for x
    x = 1,109,726,828,050.06/1,209,007.96
  6. Step 6: Final answer
    x = 917,882.15

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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.