Home / 563,141.42-777,190.89-321,460.32

Finding the Fourth Proportional to 563,141.42, 777,190.89 and 321,460.32

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Solution

The fourth proportional to 563,141.42, 777,190.89 and 321,460.32 is: 443,647.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,141.42 : 777,190.89 = 321,460.32 : x
  2. Step 2: Convert to fraction form
    563,141.42/777,190.89 = 321,460.32/x
  3. Step 3: Cross multiply
    563,141.42x = 777,190.89 × 321,460.32
  4. Step 4: Simplify right side
    563,141.42x = 249,836,032,200.49
  5. Step 5: Solve for x
    x = 249,836,032,200.49/563,141.42
  6. Step 6: Final answer
    x = 443,647.06

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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.