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Finding the Fourth Proportional to 500,064.17, 749,431.94 and 286,934.18

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Solution

The fourth proportional to 500,064.17, 749,431.94 and 286,934.18 is: 430,020.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,064.17 : 749,431.94 = 286,934.18 : x
  2. Step 2: Convert to fraction form
    500,064.17/749,431.94 = 286,934.18/x
  3. Step 3: Cross multiply
    500,064.17x = 749,431.94 × 286,934.18
  4. Step 4: Simplify right side
    500,064.17x = 215,037,633,987.88
  5. Step 5: Solve for x
    x = 215,037,633,987.88/500,064.17
  6. Step 6: Final answer
    x = 430,020.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.