Home / 760,388.76-1,049,570.28-438,314.22

Finding the Fourth Proportional to 760,388.76, 1,049,570.28 and 438,314.22

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Solution

The fourth proportional to 760,388.76, 1,049,570.28 and 438,314.22 is: 605,008.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,388.76 : 1,049,570.28 = 438,314.22 : x
  2. Step 2: Convert to fraction form
    760,388.76/1,049,570.28 = 438,314.22/x
  3. Step 3: Cross multiply
    760,388.76x = 1,049,570.28 × 438,314.22
  4. Step 4: Simplify right side
    760,388.76x = 460,041,578,613.38
  5. Step 5: Solve for x
    x = 460,041,578,613.38/760,388.76
  6. Step 6: Final answer
    x = 605,008.39

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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.