Home / 502,943.85-693,892.58-285,129.18

Finding the Fourth Proportional to 502,943.85, 693,892.58 and 285,129.18

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Solution

The fourth proportional to 502,943.85, 693,892.58 and 285,129.18 is: 393,381.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,943.85 : 693,892.58 = 285,129.18 : x
  2. Step 2: Convert to fraction form
    502,943.85/693,892.58 = 285,129.18/x
  3. Step 3: Cross multiply
    502,943.85x = 693,892.58 × 285,129.18
  4. Step 4: Simplify right side
    502,943.85x = 197,849,020,917.84
  5. Step 5: Solve for x
    x = 197,849,020,917.84/502,943.85
  6. Step 6: Final answer
    x = 393,381.93

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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.