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Finding the Fourth Proportional to 760,952.62, 1,049,608.98 and 489,363.88

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Solution

The fourth proportional to 760,952.62, 1,049,608.98 and 489,363.88 is: 674,996.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,952.62 : 1,049,608.98 = 489,363.88 : x
  2. Step 2: Convert to fraction form
    760,952.62/1,049,608.98 = 489,363.88/x
  3. Step 3: Cross multiply
    760,952.62x = 1,049,608.98 × 489,363.88
  4. Step 4: Simplify right side
    760,952.62x = 513,640,722,935.64
  5. Step 5: Solve for x
    x = 513,640,722,935.64/760,952.62
  6. Step 6: Final answer
    x = 674,996.98

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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.