Home / 1,942,688.12-2,913,401.57-645,492.12

Finding the Fourth Proportional to 1,942,688.12, 2,913,401.57 and 645,492.12

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Solution

The fourth proportional to 1,942,688.12, 2,913,401.57 and 645,492.12 is: 968,028.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942,688.12 : 2,913,401.57 = 645,492.12 : x
  2. Step 2: Convert to fraction form
    1,942,688.12/2,913,401.57 = 645,492.12/x
  3. Step 3: Cross multiply
    1,942,688.12x = 2,913,401.57 × 645,492.12
  4. Step 4: Simplify right side
    1,942,688.12x = 1,880,577,752,603.17
  5. Step 5: Solve for x
    x = 1,880,577,752,603.17/1,942,688.12
  6. Step 6: Final answer
    x = 968,028.65

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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.