Home / 3,462,428.40-4,778,398.45-1,913,656.80

Finding the Fourth Proportional to 3,462,428.40, 4,778,398.45 and 1,913,656.80

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Solution

The fourth proportional to 3,462,428.40, 4,778,398.45 and 1,913,656.80 is: 2,640,983.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,462,428.40 : 4,778,398.45 = 1,913,656.80 : x
  2. Step 2: Convert to fraction form
    3,462,428.40/4,778,398.45 = 1,913,656.80/x
  3. Step 3: Cross multiply
    3,462,428.40x = 4,778,398.45 × 1,913,656.80
  4. Step 4: Simplify right side
    3,462,428.40x = 9,144,214,688,441.62
  5. Step 5: Solve for x
    x = 9,144,214,688,441.62/3,462,428.40
  6. Step 6: Final answer
    x = 2,640,983.04

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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.