Home / 2,104,802.40-3,157,203.60-1,209,007.20

Finding the Fourth Proportional to 2,104,802.40, 3,157,203.60 and 1,209,007.20

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Solution

The fourth proportional to 2,104,802.40, 3,157,203.60 and 1,209,007.20 is: 1,813,510.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,104,802.40 : 3,157,203.60 = 1,209,007.20 : x
  2. Step 2: Convert to fraction form
    2,104,802.40/3,157,203.60 = 1,209,007.20/x
  3. Step 3: Cross multiply
    2,104,802.40x = 3,157,203.60 × 1,209,007.20
  4. Step 4: Simplify right side
    2,104,802.40x = 3,817,081,884,265.92
  5. Step 5: Solve for x
    x = 3,817,081,884,265.92/2,104,802.40
  6. Step 6: Final answer
    x = 1,813,510.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.