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Finding the Fourth Proportional to 506,328.64, 698,747.52 and 279,982.24

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Solution

The fourth proportional to 506,328.64, 698,747.52 and 279,982.24 is: 386,383.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,328.64 : 698,747.52 = 279,982.24 : x
  2. Step 2: Convert to fraction form
    506,328.64/698,747.52 = 279,982.24/x
  3. Step 3: Cross multiply
    506,328.64x = 698,747.52 × 279,982.24
  4. Step 4: Simplify right side
    506,328.64x = 195,636,895,844.05
  5. Step 5: Solve for x
    x = 195,636,895,844.05/506,328.64
  6. Step 6: Final answer
    x = 386,383.23

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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.