Home / 730,422.94-1,007,988.72-408,146.62

Finding the Fourth Proportional to 730,422.94, 1,007,988.72 and 408,146.62

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Solution

The fourth proportional to 730,422.94, 1,007,988.72 and 408,146.62 is: 563,245.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,422.94 : 1,007,988.72 = 408,146.62 : x
  2. Step 2: Convert to fraction form
    730,422.94/1,007,988.72 = 408,146.62/x
  3. Step 3: Cross multiply
    730,422.94x = 1,007,988.72 × 408,146.62
  4. Step 4: Simplify right side
    730,422.94x = 411,407,181,985.45
  5. Step 5: Solve for x
    x = 411,407,181,985.45/730,422.94
  6. Step 6: Final answer
    x = 563,245.16

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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.