Home / 563,147.04-776,948.16-427,039.20

Finding the Fourth Proportional to 563,147.04, 776,948.16 and 427,039.20

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Solution

The fourth proportional to 563,147.04, 776,948.16 and 427,039.20 is: 589,166.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,147.04 : 776,948.16 = 427,039.20 : x
  2. Step 2: Convert to fraction form
    563,147.04/776,948.16 = 427,039.20/x
  3. Step 3: Cross multiply
    563,147.04x = 776,948.16 × 427,039.20
  4. Step 4: Simplify right side
    563,147.04x = 331,787,320,687.87
  5. Step 5: Solve for x
    x = 331,787,320,687.87/563,147.04
  6. Step 6: Final answer
    x = 589,166.41

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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.