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Finding the Fourth Proportional to 492,350.36, 679,480.80 and 277,510.64

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Solution

The fourth proportional to 492,350.36, 679,480.80 and 277,510.64 is: 382,985.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,350.36 : 679,480.80 = 277,510.64 : x
  2. Step 2: Convert to fraction form
    492,350.36/679,480.80 = 277,510.64/x
  3. Step 3: Cross multiply
    492,350.36x = 679,480.80 × 277,510.64
  4. Step 4: Simplify right side
    492,350.36x = 188,563,151,675.71
  5. Step 5: Solve for x
    x = 188,563,151,675.71/492,350.36
  6. Step 6: Final answer
    x = 382,985.71

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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.