Home / 760,953.62-1,049,610.36-489,364.88

Finding the Fourth Proportional to 760,953.62, 1,049,610.36 and 489,364.88

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Solution

The fourth proportional to 760,953.62, 1,049,610.36 and 489,364.88 is: 674,998.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,953.62 : 1,049,610.36 = 489,364.88 : x
  2. Step 2: Convert to fraction form
    760,953.62/1,049,610.36 = 489,364.88/x
  3. Step 3: Cross multiply
    760,953.62x = 1,049,610.36 × 489,364.88
  4. Step 4: Simplify right side
    760,953.62x = 513,642,447,868.16
  5. Step 5: Solve for x
    x = 513,642,447,868.16/760,953.62
  6. Step 6: Final answer
    x = 674,998.36

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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.