Home / 760,310.40-1,049,214.88-438,019.68

Finding the Fourth Proportional to 760,310.40, 1,049,214.88 and 438,019.68

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Solution

The fourth proportional to 760,310.40, 1,049,214.88 and 438,019.68 is: 604,459.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,310.40 : 1,049,214.88 = 438,019.68 : x
  2. Step 2: Convert to fraction form
    760,310.40/1,049,214.88 = 438,019.68/x
  3. Step 3: Cross multiply
    760,310.40x = 1,049,214.88 × 438,019.68
  4. Step 4: Simplify right side
    760,310.40x = 459,576,765,988.84
  5. Step 5: Solve for x
    x = 459,576,765,988.84/760,310.40
  6. Step 6: Final answer
    x = 604,459.40

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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.