Home / 678,338.91-1,012,356.56-650,874.24

Finding the Fourth Proportional to 678,338.91, 1,012,356.56 and 650,874.24

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Solution

The fourth proportional to 678,338.91, 1,012,356.56 and 650,874.24 is: 971,368.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,338.91 : 1,012,356.56 = 650,874.24 : x
  2. Step 2: Convert to fraction form
    678,338.91/1,012,356.56 = 650,874.24/x
  3. Step 3: Cross multiply
    678,338.91x = 1,012,356.56 × 650,874.24
  4. Step 4: Simplify right side
    678,338.91x = 658,916,808,226.20
  5. Step 5: Solve for x
    x = 658,916,808,226.20/678,338.91
  6. Step 6: Final answer
    x = 971,368.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.