Home / 1,397,208.40-2,095,812.60-386,328.40

Finding the Fourth Proportional to 1,397,208.40, 2,095,812.60 and 386,328.40

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Solution

The fourth proportional to 1,397,208.40, 2,095,812.60 and 386,328.40 is: 579,492.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,208.40 : 2,095,812.60 = 386,328.40 : x
  2. Step 2: Convert to fraction form
    1,397,208.40/2,095,812.60 = 386,328.40/x
  3. Step 3: Cross multiply
    1,397,208.40x = 2,095,812.60 × 386,328.40
  4. Step 4: Simplify right side
    1,397,208.40x = 809,671,928,457.84
  5. Step 5: Solve for x
    x = 809,671,928,457.84/1,397,208.40
  6. Step 6: Final answer
    x = 579,492.60

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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.