Home / 777,418.74-1,072,471.32-454,931.04

Finding the Fourth Proportional to 777,418.74, 1,072,471.32 and 454,931.04

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Solution

The fourth proportional to 777,418.74, 1,072,471.32 and 454,931.04 is: 627,590.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,418.74 : 1,072,471.32 = 454,931.04 : x
  2. Step 2: Convert to fraction form
    777,418.74/1,072,471.32 = 454,931.04/x
  3. Step 3: Cross multiply
    777,418.74x = 1,072,471.32 × 454,931.04
  4. Step 4: Simplify right side
    777,418.74x = 487,900,492,977.77
  5. Step 5: Solve for x
    x = 487,900,492,977.77/777,418.74
  6. Step 6: Final answer
    x = 627,590.34

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1.5x scale

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.