Home / 516,417.02-712,790.82-290,135.42

Finding the Fourth Proportional to 516,417.02, 712,790.82 and 290,135.42

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Solution

The fourth proportional to 516,417.02, 712,790.82 and 290,135.42 is: 400,462.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,417.02 : 712,790.82 = 290,135.42 : x
  2. Step 2: Convert to fraction form
    516,417.02/712,790.82 = 290,135.42/x
  3. Step 3: Cross multiply
    516,417.02x = 712,790.82 × 290,135.42
  4. Step 4: Simplify right side
    516,417.02x = 206,805,863,932.84
  5. Step 5: Solve for x
    x = 206,805,863,932.84/516,417.02
  6. Step 6: Final answer
    x = 400,462.91

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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.