Home / 760,310.78-1,049,462.33-438,235.20

Finding the Fourth Proportional to 760,310.78, 1,049,462.33 and 438,235.20

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Solution

The fourth proportional to 760,310.78, 1,049,462.33 and 438,235.20 is: 604,899.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,310.78 : 1,049,462.33 = 438,235.20 : x
  2. Step 2: Convert to fraction form
    760,310.78/1,049,462.33 = 438,235.20/x
  3. Step 3: Cross multiply
    760,310.78x = 1,049,462.33 × 438,235.20
  4. Step 4: Simplify right side
    760,310.78x = 459,911,331,888.84
  5. Step 5: Solve for x
    x = 459,911,331,888.84/760,310.78
  6. Step 6: Final answer
    x = 604,899.14

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Double scale
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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.