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Finding the Fourth Proportional to 502,393.91, 693,311.45 and 272,955.74

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Solution

The fourth proportional to 502,393.91, 693,311.45 and 272,955.74 is: 376,683.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,393.91 : 693,311.45 = 272,955.74 : x
  2. Step 2: Convert to fraction form
    502,393.91/693,311.45 = 272,955.74/x
  3. Step 3: Cross multiply
    502,393.91x = 693,311.45 × 272,955.74
  4. Step 4: Simplify right side
    502,393.91x = 189,243,335,053.89
  5. Step 5: Solve for x
    x = 189,243,335,053.89/502,393.91
  6. Step 6: Final answer
    x = 376,683.18

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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.