Home / 760,991.47-1,049,662.45-489,402.93

Finding the Fourth Proportional to 760,991.47, 1,049,662.45 and 489,402.93

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Solution

The fourth proportional to 760,991.47, 1,049,662.45 and 489,402.93 is: 675,050.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,991.47 : 1,049,662.45 = 489,402.93 : x
  2. Step 2: Convert to fraction form
    760,991.47/1,049,662.45 = 489,402.93/x
  3. Step 3: Cross multiply
    760,991.47x = 1,049,662.45 × 489,402.93
  4. Step 4: Simplify right side
    760,991.47x = 513,707,878,540.98
  5. Step 5: Solve for x
    x = 513,707,878,540.98/760,991.47
  6. Step 6: Final answer
    x = 675,050.77

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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.