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Finding the Fourth Proportional to 500,065.17, 749,433.43 and 286,935.18

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Solution

The fourth proportional to 500,065.17, 749,433.43 and 286,935.18 is: 430,021.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,065.17 : 749,433.43 = 286,935.18 : x
  2. Step 2: Convert to fraction form
    500,065.17/749,433.43 = 286,935.18/x
  3. Step 3: Cross multiply
    500,065.17x = 749,433.43 × 286,935.18
  4. Step 4: Simplify right side
    500,065.17x = 215,038,816,135.07
  5. Step 5: Solve for x
    x = 215,038,816,135.07/500,065.17
  6. Step 6: Final answer
    x = 430,021.58

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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.