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Finding the Fourth Proportional to 615,284.25, 849,090.63 and 343,349.25

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Solution

The fourth proportional to 615,284.25, 849,090.63 and 343,349.25 is: 473,821.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,284.25 : 849,090.63 = 343,349.25 : x
  2. Step 2: Convert to fraction form
    615,284.25/849,090.63 = 343,349.25/x
  3. Step 3: Cross multiply
    615,284.25x = 849,090.63 × 343,349.25
  4. Step 4: Simplify right side
    615,284.25x = 291,534,630,992.53
  5. Step 5: Solve for x
    x = 291,534,630,992.53/615,284.25
  6. Step 6: Final answer
    x = 473,821.05

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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.