Home / 497,477.28-686,520.94-282,629.12

Finding the Fourth Proportional to 497,477.28, 686,520.94 and 282,629.12

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Solution

The fourth proportional to 497,477.28, 686,520.94 and 282,629.12 is: 390,029.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,477.28 : 686,520.94 = 282,629.12 : x
  2. Step 2: Convert to fraction form
    497,477.28/686,520.94 = 282,629.12/x
  3. Step 3: Cross multiply
    497,477.28x = 686,520.94 × 282,629.12
  4. Step 4: Simplify right side
    497,477.28x = 194,030,809,133.77
  5. Step 5: Solve for x
    x = 194,030,809,133.77/497,477.28
  6. Step 6: Final answer
    x = 390,029.49

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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.