Home / 760,989.47-1,049,659.69-489,400.93

Finding the Fourth Proportional to 760,989.47, 1,049,659.69 and 489,400.93

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Solution

The fourth proportional to 760,989.47, 1,049,659.69 and 489,400.93 is: 675,048.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,989.47 : 1,049,659.69 = 489,400.93 : x
  2. Step 2: Convert to fraction form
    760,989.47/1,049,659.69 = 489,400.93/x
  3. Step 3: Cross multiply
    760,989.47x = 1,049,659.69 × 489,400.93
  4. Step 4: Simplify right side
    760,989.47x = 513,704,420,774.21
  5. Step 5: Solve for x
    x = 513,704,420,774.21/760,989.47
  6. Step 6: Final answer
    x = 675,048.00

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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.